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中国市场电子变速套件

集中对比公路、Gravel、山地及计时电子变速系统。

13 套系统 · 复核于 2026-08-25 展开某一行，查看适配、电池、套餐范围、重量证据与来源。

中国市场电子变速系统
跟随系统用途齿比形式国内价格
Shimano 105 Di2 R7150 rear derailleur105 Di2 R7170Shimano
 公路／全路况The default value benchmark: mature parts supply, 36T cassette capacity and an HG-compatible road ecosystem. 2x · 12Up to 36T rear 半无线液压碟刹 ¥4,150–4,200Dealer observations · 2026-08-20
详情

Road and all-road 2x12 electronic shifting with hydraulic disc brakes

适配

塔基
HG road for the supported 11T-start cassettes
尾钩
Standard/direct-mount compatible derailleur-hanger system
车架
Internal BT-DN300 space and two SD300 wire routes to FD/RD
刹车油
Shimano mineral oil

电源与控制

架构
Semi-wireless: the levers transmit wirelessly; front and rear derailleurs connect to one internal BT-DN300 battery.
电池
Internal BT-DN300 derailleur battery; wireless levers use coin cells.
控制
E-TUBE PROJECT Cyclist supports firmware, adjustment and control configuration.

套餐与重量

套餐
A large-set label is not normalized. The dated ¥4,150 and ¥4,200 observations say large package without rotors; a separate ¥3,570 observation covers electronic parts plus calipers.
重量
No package-independent total is used. Dealer options vary in whether crank, cassette, chain, calipers, rotors and bottom bracket are present.

已记录套餐

Dealer market observation · ¥4,150mainland public dealer-post synthesis · 2026-08-19 · Dealer market observation

Large package, described without rotors; underlying dealer-post URL was not supplied.

Dealer market observation · ¥4,200mainland public dealer-post synthesis · 2026-08-20 · Dealer market observation

Separate large-package observation; exact contents beyond the supplied wording remain unverified.

Dealer market observation · ¥3,570mainland public dealer-post synthesis · 2026-08-24 · Dealer market observation

Electronic parts plus calipers; not a normalized full groupset.

购买前确认

  • Confirm every included part; small, medium and large package names are seller text, not standards.
  • The frame needs internal battery space and wire routing even though the levers are wireless.
  • Compare the complete installed cost, including rotors, bottom bracket and any omitted drivetrain parts.
来源Shimano 105 Di2 RD-R7150Shimano Product Information RD-R7150Shimano Di2 with BT-DN300 compatibilityShimano August price-rise and dealer-market observation synthesisElectronic groupsets to buy in China — August 2026Image: Shimano · exact family
Shimano GRX RX825 Di2 rear derailleurGRX Di2 RX825Shimano
 Gravel／全路况The strongest 2x benchmark for broken roads and gravel: close road-like steps, 36T range and SHADOW RD+ chain control. 2x · 12Up to 36T rear 半无线液压碟刹
详情

Road-biased gravel and all-road 2x12 with a chain stabilizer

适配

塔基
HG for 11-34T or 11-36T 12-speed cassettes
尾钩
Standard/direct-mount compatible derailleur-hanger system
车架
Internal BT-DN300 space, FD mount and two SD300 wire routes
刹车油
Shimano mineral oil

电源与控制

架构
Semi-wireless: wireless levers with front and rear derailleurs wired to an internal BT-DN300 battery.
电池
Internal BT-DN300 derailleur battery; wireless lever controls.
控制
E-TUBE PROJECT Cyclist plus full or semi-synchronized shift modes; rear derailleur includes SHADOW RD+ stabilization.

套餐与重量

套餐
Core electronic purchases need two levers, FD, RD, BT-DN300, SD300 wires, charger and hydraulic brakes; crank, cassette, chain, rotors and bottom bracket may be separate.
重量
No normalized complete-groupset total is recorded; compare only like-for-like component packages.

购买前确认

  • This is 2x only; do not merge its battery, cassette or derailleur facts with RX717/RX827 1x.
  • Confirm whether the chosen crank is 46/30 or 48/31 and whether the cassette is 11-34 or 11-36.
  • A retrofit still needs internal battery and wire routing.
来源Shimano GRX Di2 RD-RX825Shimano Product Information RD-RX825Shimano Di2 with BT-DN300 compatibilityElectronic groupsets to buy in China — August 2026Image: Shimano · exact family
Shimano GRX RX827 wireless rear derailleurGRX Di2 RX717 / RX827Shimano
 Gravel 砾石Wide-range wireless gravel: RX717 is the value version and RX827 the tougher premium version, both distinct from wired 2x RX825. 1x · 12Up to 51T rear 全无线液压碟刹
详情

Fully wireless 1x12 gravel with a 10-51T cassette

适配

塔基
Micro Spline for the 10-51T cassette
尾钩
Conventional replaceable hanger; UDH is not required
车架
No internal electronic wire route; verify normal hanger clearance and 1x chainline
刹车油
Shimano mineral oil

电源与控制

架构
Fully wireless shifting with a removable protected battery in the rear derailleur; no internal derailleur battery wiring.
电池
Removable rear-derailleur battery shared across the current RX717/RX827-compatible Shimano wireless family; lever controls use their own cells.
控制
Wireless Di2 control; Automatic Impact Recovery and SHADOW ES-style protection are part of the current rear-derailleur family.

套餐与重量

套餐
A usable conversion needs the matching right shift/brake lever, left brake lever, RD battery and charger, 10-51T cassette, chain, crank/chainring and hydraulic brakes.
重量
No normalized package total is recorded; RX717 and RX827 component weights must remain revision-specific.

购买前确认

  • The 10T start requires a Micro Spline-compatible wheel or freehub body.
  • This is 1x only and has larger cadence steps than a 2x road/all-road setup.
  • Do not label the normal-hanger RX827 as SRAM-style UDH Full Mount.
来源Shimano expands GRX with RX717Shimano GRX Di2 RD-RX827-SGSShimano Product Information RD-RX827-SGSElectronic groupsets to buy in China — August 2026Image: Shimano · GRX RX827 shown
SRAM Rival AXS E1 wireless rear derailleurRival AXS E1SRAM
 公路／全路况The mainstream fully wireless benchmark: easy electronic installation, but XDR, Flattop, DUB and DOT requirements can raise retrofit cost. 1x or 2x · 12Up to 36T rear 全无线液压碟刹
详情

Fully wireless road/all-road 1x or 2x12

适配

塔基
XDR for the normal 10T-start road cassettes
尾钩
Standard derailleur hanger
车架
No electronic wire route; verify XDR wheel and DUB/crank compatibility
刹车油
DOT 5.1

电源与控制

架构
Fully wireless AXS control with removable batteries on each derailleur and coin cells in the levers.
电池
One removable AXS battery per installed derailleur plus lever coin cells; a 2x setup normally carries two interchangeable derailleur batteries.
控制
AXS app supports setup, personalization, battery state and firmware.

套餐与重量

套餐
A road conversion may need levers, RD, optional FD, one or two batteries, charger, calipers, cassette, Flattop chain, crank, DUB bottom bracket and rotors.
重量
SRAM states the current family is 213 g lighter than its prior generation, but no cross-brand package total is used here.

购买前确认

  • Count the XDR freehub, Flattop chain, cassette, batteries, charger, DUB parts and DOT bleed equipment before comparing prices.
  • Road AXS hydraulic brakes use DOT fluid, not mineral oil.
  • Confirm whether a listing is E1 current generation or older Rival eTap AXS.
来源SRAM Rival AXS E1 rear derailleurElectronic groupsets to buy in China — August 2026Image: SRAM · exact family
SRAM Apex XPLR AXS D1 wireless rear derailleurApex XPLR D1 / Rival XPLR E1SRAM
 Gravel 砾石Apex D1 is the standard-hanger 12-speed route; Rival E1 is the newer 13-speed Full Mount route and requires a UDH-capable frame. 1x · Apex 12; Rival 13Up to 46T rear 全无线液压碟刹
详情

Fully wireless 1x gravel, with different 12- and 13-speed frame constraints

适配

塔基
Apex: HG with 11-44T or XDR with 10T-start cassette; Rival E1: XDR
尾钩
Apex D1 standard hanger; Rival E1 requires UDH-capable Full Mount frame
车架
Rival E1 cannot be fitted to an ordinary non-UDH dropout
刹车油
DOT 5.1

电源与控制

架构
Fully wireless AXS control with a removable rear-derailleur battery; the two revisions use different cassettes and frame mounts.
电池
Removable AXS rear-derailleur battery plus lever coin cells.
控制
AXS app supports setup, personalization, battery state and firmware.

套餐与重量

套餐
Apex D1 works with 10-36T, 10-44T or 11-44T XPLR cassettes; the 11-44T route can retain HG. Rival E1 uses the 10-46T 13-speed XPLR cassette and Full Mount.
重量
No combined total is used because Apex D1 12-speed and Rival E1 13-speed are different systems.

购买前确认

  • Never present 13-speed Rival XPLR E1 as compatible with an ordinary hanger frame.
  • Do not merge Apex D1 12-speed cassette compatibility into Rival E1 13-speed.
  • Count XDR, Flattop chain, batteries, brakes and installation parts in the conversion price.
来源SRAM Apex XPLR AXS D1 rear derailleurSRAM Rival XPLR AXS E1 compatibilityElectronic groupsets to buy in China — August 2026Image: SRAM · Apex XPLR AXS D1 shown
WheelTop EDS TX electronic road shift leversEDS TX road electronicWheelTop · Wheeltop
 公路The broad-compatibility option: app-selectable cassette speed and a rim/cable-brake kit as well as hydraulic disc. 1× or 2× · 3-14Up to 36T rear 全无线液压碟刹 · Cable-actuated rim or mechanical disc ¥2,369–3,219Taobao options · 2026-08-24
详情

Road 1× or 2× electronic shifting with hydraulic or cable brakes

适配

塔基
Depends on the selected 3-14-speed cassette; verify cassette, chain and wheel together
尾钩
Standard derailleur hanger
车架
No internal battery or electronic wire route; verify front-derailleur mount for 2x
刹车油
Confirm the selected hydraulic revision; cable-brake kit has no hydraulic circuit

电源与控制

架构
Fully wireless control with separate rechargeable batteries in the front and rear derailleurs; shifters use CR2032 cells.
电池
Rear derailleur 800 mAh, front derailleur 500 mAh, claimed 20,000+ shifts and 800 charge cycles; shifters use CR2032. RD/FD are IP67 and shifters IP65.
控制
App sets cassette speed, button mapping, micro-adjustment, calibration, firmware and battery display; ANT+ integration is advertised.

套餐与重量

套餐
The official hydraulic kit includes two levers, front and rear derailleurs, two calipers and hoses, charging parts, instructions and spares. The observed Taobao options separate 1x/2x and alloy/carbon seller labels; crank, cassette, chain, rotors and bottom bracket were not visible as included. Cable kit omits calipers and hoses, and its lever internals are not interchangeable.
重量
Hydraulic kit listings: 223 g per lever, 336 g rear derailleur, 191 g front derailleur and 163 g per caliper. Hoses, charging parts and small hardware are additional.

已记录套餐

单盘碟刹铝合金版 · ¥2,369Taobao seller option · 2026-08-24 · Listed option

单盘碟刹铝合金版; 1x hydraulic-disc shift-and-brake kit, alloy seller label; checkout unverified; crank, cassette, chain, rotors and bottom bracket not visible as included.

单盘碟刹碳纤维版 · ¥2,624Taobao seller option · 2026-08-24 · Listed option

单盘碟刹碳纤维版; 1x hydraulic-disc shift-and-brake kit, carbon-fibre seller label; checkout unverified.

碟刹铝合金版 · ¥2,879Taobao seller option · 2026-08-24 · Listed option

碟刹铝合金版; 2x hydraulic-disc shift-and-brake kit, alloy seller label; checkout unverified.

碟刹碳纤维版 · ¥3,219Taobao seller option · 2026-08-24 · Listed option

碟刹碳纤维版; 2x hydraulic-disc shift-and-brake kit, carbon-fibre seller label; checkout unverified.

Displayed reference · EUR 659manufacturer-direct global store · 2026-08-24 · Displayed reference

Displayed reference on the official page; variation, destination, tax, shipping and mainland warranty route were not checked.

购买前确认

  • Keep the current 3-14-speed revision separate from older regional 7-13-speed TX records.
  • Select the exact cassette speed in the app and verify chain/cassette compatibility rather than treating 3-14-speed support as universal indexing proof.
  • The 36T rear limit is narrower than many modern gravel 1× cassettes.
  • Do not subtract the screenshot's unspecified ¥300 combination discount from any selected-option price.
  • Confirm brake version, hose length, pad/rotor compatibility and local after-sales route.
来源WheelTop EDS TX road electronic groupsetWHEELTOP EDS TX Taobao option pricesImage: WheelTop · exact family
WheelTop EDS GeX wireless gravel rear derailleurEDS GeX gravel electronicWheelTop · Wheeltop
 Gravel 砾石The Chinese wide-range wireless option: choose derailleur cage and hanger configuration before treating it as one product. 1x · 3-14Up to 52T rear 全无线液压碟刹 ¥2,369Taobao options · 2026-08-24
详情

Fully wireless 1x gravel with 46T or 52T rear range

适配

塔基
Depends on the selected 3-14-speed cassette; verify cassette, chain and wheel together
尾钩
Standard-hanger and UDH-specific configurations exist; order the exact one
车架
No internal electronic wire route; verify cage clearance and selected hanger version
刹车油
Mineral oil

电源与控制

架构
Fully wireless control with an integrated rechargeable rear-derailleur battery and wireless levers.
电池
Rear derailleur 800 mAh; current materials describe about 20,000 shifts and 800 charge cycles.
控制
App speed selection and fine adjustment plus ANT+ support.

套餐与重量

套餐
Current packages combine rear derailleur, two levers, hydraulic calipers/hoses and charging cable. The observed Taobao long-, medium- and short-cage seller options were each ¥2,369, but their screenshots do not map those labels to exact 46T/52T capacities; confirm cage, lever material and standard-hanger or UDH configuration.
重量
Do not carry the older 7-13-speed RA-package 1.14 kg figure into the current 3-14-speed revision without an exact package match.

已记录套餐

碟刹长腿版 · ¥2,369Taobao seller option · 2026-08-24 · Listed option

碟刹长腿版; 1x hydraulic shift-and-brake kit, long-cage seller label; exact sprocket capacity not established by screenshot; checkout unverified.

碟刹中腿版 · ¥2,369Taobao seller option · 2026-08-24 · Listed option

碟刹中腿版; 1x hydraulic shift-and-brake kit, medium-cage seller label; exact sprocket capacity not established by screenshot; checkout unverified.

碟刹短腿版 · ¥2,369Taobao seller option · 2026-08-24 · Listed option

碟刹短腿版; 1x hydraulic shift-and-brake kit, short-cage seller label; exact sprocket capacity not established by screenshot; checkout unverified.

购买前确认

  • Keep the current 3-14-speed revision separate from older 7-13-speed RA records.
  • A 75 mm 46T unit and 93 mm 52T unit are not interchangeable specifications.
  • Do not infer 46T or 52T capacity from the Taobao long/medium/short seller labels alone, and do not apply the unspecified ¥300 bundle discount.
  • Confirm cassette indexing, chain, hanger configuration, lever material and warranty route.
来源WheelTop EDS GeX wireless gravel groupsetElectronic groupsets to buy in China — August 2026WHEELTOP EDS GeX Taobao option pricesImage: WheelTop · exact family
L-TWOO eRX electronic road shift levers on a handlebareRX / eR9 road electronicL-TWOO · 蓝图
 公路eRX is the carbon flagship; eR9 is the lower-cost aluminium entry system with separate calipers. 2× · 10-12 半无线液压碟刹 ¥3,480Taobao option · 2026-08-24
详情

Road 2× electronic shifting with hydraulic disc brakes

适配

塔基
Depends on the selected 10-12-speed cassette
尾钩
Standard derailleur hanger
车架
Internal seat-tube battery fit and two power-wire routes
刹车油
L-TWOO O ONE mineral brake fluid; do not substitute DOT

电源与控制

架构
Semi-wireless: both levers send wireless commands; front and rear derailleurs draw power through wires from one seat-tube battery.
电池
Official manual/catalog generation: internal 7.4 V, 800 mAh battery; current range and charge time are not stated on the current product overview.
控制
L-TWOO app supports speed selection, micro-adjustment and firmware updates; optional flat-bar and time-trial controls are part of the Electric ecosystem.

套餐与重量

套餐
The official manual package includes two levers, front and rear derailleurs, two hydraulic calipers, internal battery, two power wires, charger, hardware and mineral brake fluid. The observed boxed eR9 kit was ¥3,480; the same visible core parts total ¥3,973 as separate options, while crank, cassette, chain, rotors and bottom bracket were not visible as included.
重量
The official 2024 catalog lists 225 g per lever, 270 g rear derailleur, 135 g front derailleur and 118 g per caliper. It does not give a safe current-generation total.

已记录套餐

eR9 盒装铝合金版套件 · ¥3,480Taobao seller option · 2026-08-24 · Listed option

eR9 盒装铝合金版套件; boxed 2x road shift-and-brake kit, alloy seller label; checkout unverified; crank, cassette, chain, rotors and bottom bracket not visible as included.

eR9 左手2速 · ¥688Taobao seller option · 2026-08-24 · Component option

eR9 左手2速; left 2-speed lever.

eR9 右手10-12速 · ¥688Taobao seller option · 2026-08-24 · Component option

eR9 右手10-12速; right 10-12-speed lever.

eR9 前拨 直装式 · ¥520Taobao seller option · 2026-08-24 · Component option

eR9 前拨 直装式; braze-on front derailleur.

eR9 后拨 · ¥780Taobao seller option · 2026-08-24 · Component option

eR9 后拨; rear derailleur.

eR9 前夹器（含油管） · ¥319Taobao seller option · 2026-08-24 · Component option

eR9 前夹器（含油管）; front caliper with hose.

eR9 后夹器（含油管） · ¥319Taobao seller option · 2026-08-24 · Component option

eR9 后夹器（含油管）; rear caliper with hose.

磁吸充电器+电源线X2+电池组 · ¥659Taobao seller option · 2026-08-24 · Component option

磁吸充电器+电源线X2+电池组; magnetic charger, two power cables and battery pack.

磁吸充电器 · ¥119Taobao seller option · 2026-08-24 · Component option

磁吸充电器; magnetic charger only.

购买前确认

  • Confirm the exact generation, maximum rear sprocket, rear-cage range and battery-mount fit before ordering.
  • The system requires internal power-wire routing and a workable seat-tube battery mount.
  • Use the specified L-TWOO mineral brake fluid rather than DOT fluid.
来源L-TWOO road electronic shifting and hydraulic brake seriesL-TWOO 2024 product catalogL-TWOO eRX user manualL-TWOO eR9 Taobao kit and component pricesImage: L-TWOO · eRX shown
L-TWOO eGR electronic gravel groupset componentseGR gravel electronicL-TWOO · 蓝图
 Gravel 砾石The documented L-TWOO gravel option: 46T range, damped rear derailleur and hydraulic controls, but exact kit wiring and mainland package still need checking. 1x · 10-12Up to 46T rear 电子液压碟刹
详情

Hydraulic 1x10-12-speed gravel shifting to 46T

适配

塔基
Depends on the chosen 10-12-speed 11-46T cassette
尾钩
Standard derailleur hanger
车架
Confirm battery location, power-wire routing and 1x chainline for the exact generation
刹车油
L-TWOO O ONE mineral brake fluid; do not substitute DOT

电源与控制

架构
Electronic app-configurable shifting; confirm the exact battery and power-wire routing for the current package before ordering.
电池
Current public product page does not expose a sufficiently clear package-level battery specification.
控制
L-TWOO app supports speed selection, adjustment and firmware; rear derailleur includes a friction damping system.

套餐与重量

套餐
Confirm levers, rear derailleur, battery, wires/charger, both calipers and hoses; keep unverified OEM 13-speed fully wireless listings separate from this official 10-12-speed record.
重量
Official current page lists 333 g for the damped rear derailleur and 225 g per shift/brake lever; it does not give a normalized full-package total.

购买前确认

  • Do not merge unverified OEM 13-speed fully wireless claims into the official 10-12-speed eGR record.
  • Confirm battery, wiring, caliper generation and every included item from the exact listing.
  • Use the specified L-TWOO mineral fluid and confirm local service support.
来源L-TWOO eGR gravel electronic shiftingL-TWOO disc brake and O ONE mineral-fluid guidanceElectronic groupsets to buy in China — August 2026Image: L-TWOO · exact family
Magene QED electronic groupset brake caliper and rotorQED / PES road electronicMagene · 迈金
 公路QED is the lighter carbon-injection system and PES trades 100 g for lower-cost construction, but supplied 2026 service-action reports lack a matching official bulletin, so treat both as research-stage purchases. 2× · QED 10-13; PES 10-12Up to 34T rear 半无线液压碟刹 · Rim brake
详情

Road 2× semi-wireless electronic shifting in OEM core or full groupsets

适配

塔基
Depends on the chosen 10-13-speed cassette and exact QED/PES generation
尾钩
Standard derailleur hanger
车架
Internal seatpost battery fit and power-wire routing
刹车油
Confirm the exact caliper generation and specified fluid

电源与控制

架构
Semi-wireless: levers communicate wirelessly; front and rear derailleurs connect to one internal seatpost battery.
电池
7.4 V 800 mAh seatpost battery, claimed 2,500 km derailleur range, 3-hour charge and 18-month shifter-battery life.
控制
App setup, synchronized shifting, three configurable X/Y/Z buttons, multi-scenario setup and bike-computer/light integration are listed.

套餐与重量

套餐
Core rim-brake kit covers levers and derailleurs; core disc kit adds brakes. Full and super OEM groupsets may add cassette, chain, crank or power-meter crank, and some packages add wheels.
重量
Official catalog: QED disc-brake core groupset 1,150 g; PES disc-brake core groupset 1,250 g. Core means levers, derailleurs and brakes, not cassette, chain or crank.

购买前确认

  • Public 2026 service-action and free-upgrade reports were supplied without a matching official bulletin; confirm the revised generation and written warranty before purchase.
  • Magene's direct platform lists a one-year warranty for the original purchaser; purchases through other official channels follow that channel's policy.
  • Confirm whether a listing is a core kit or a full OEM package; cassette, chain and crank are absent from core groupsets.
  • The 2024 launch material described 10-12-speed compatibility, while the newer catalog lists QED through 13 speed; confirm firmware and exact generation.
  • Confirm internal battery fit, wire routing, brake-caliper version and an after-sales route for the exact seller or complete bike.
来源Magene all-products catalog — QED and PES electronic shiftingMagene QED electronic shifting system overviewMagene direct-platform warranty policyImage: Magene · QED shown
Ultegra R8170 / Dura-Ace R9270 Di2Shimano
 公路Premium road benchmarks with lower component weight and additional control features, but no cassette-range advantage over 105 R7170. 2x · 12Up to 34T rear 半无线液压碟刹 · Wired rim-brake controls ¥6,050Dealer observation · 2026-08-20
详情

Premium road 2x12 electronic shifting with hydraulic-disc or generation-specific wired rim-brake controls

适配

塔基
HG road for supported 11T-start 12-speed cassettes
尾钩
Standard/direct-mount compatible derailleur-hanger system
车架
Internal BT-DN300 space and SD300 wire routes to both derailleurs; rim-brake controls require their generation-specific wiring
刹车油
Shimano mineral oil for hydraulic-disc builds

电源与控制

架构
Semi-wireless in the hydraulic-disc builds: wireless levers with front and rear derailleurs connected to one internal BT-DN300 battery; current rim-brake controls are wired.
电池
Internal BT-DN300 derailleur battery; hydraulic wireless levers use coin cells.
控制
E-TUBE PROJECT Cyclist supports firmware, adjustment and control configuration; these tiers add control and component refinements rather than cassette range.

套餐与重量

套餐
The dated R8170 ¥6,050 observation was described as a large package including rotors; a separate ¥5,000 observation covers electronic parts plus calipers. Neither is a normalized checkout package.
重量
No package-independent total is used; quoted totals must identify whether crank, cassette, chain, calipers, rotors and bottom bracket are included.

已记录套餐

Dealer market observation · ¥6,050mainland public dealer-post synthesis · 2026-08-20 · Dealer market observation

R8170 large package, reported with rotors; underlying dealer checkout was not captured.

Dealer market observation · ¥5,000mainland public dealer-post synthesis · 2026-08-24 · Dealer market observation

R8170 electronic parts plus calipers; not a normalized full groupset.

购买前确认

  • Both rear derailleurs stop at 34T; 105 R7170 supports 36T.
  • Confirm hydraulic-disc versus wired rim-brake controls and every included part.
  • Treat the observed R8170 premium as a planning lead, not a guaranteed Taobao checkout difference.
来源Shimano Ultegra Di2 RD-R8150 rear derailleurShimano Dura-Ace Di2 RD-R9250 rear derailleurShimano Di2 with BT-DN300 compatibilityShimano August price-rise and dealer-market observation synthesisElectronic groupsets to buy in China — August 2026
L-TWOO eRX-TTTime trial / triathlon
 Time trial / triathlonTT brake levers with shift buttons and separate aero-extension controllers, not ordinary drop-bar road controls. ¥4,196.1–4,796.1Taobao options · 2026-08-24
详情

已记录套餐

新款eRX-TT碳纤维大导轮电子变速套装 · ¥4,796Shift brake · 2026-08-24

carbon-fibre and large-pulley full TT kit

新款eRX-TT电子变速套装 · ¥4,596Shift brake · 2026-08-24

standard full TT kit

eRX-TT 电子部分-不含夹器-大导轮... · ¥4,396Electronics only · 2026-08-24

large-pulley electronic parts excluding calipers; label ending hidden

eRX-TT 电子部分-不含夹器 · ¥4,196Electronics only · 2026-08-24

standard electronic parts excluding calipers

eRX-TT左刹把（带变速按钮） · ¥697Component · 2026-08-24

left brake lever with shift button

eRX-TT右刹把（带变速按钮） · ¥697Component · 2026-08-24

right brake lever with shift button

eRX-TT刹把一对（带变速按钮） · ¥1,327Component · 2026-08-24

pair of brake levers with shift buttons

eRX-TT左控制器 · ¥442Component · 2026-08-24

left aero-extension controller

eRX-TT右控制器 · ¥442Component · 2026-08-24

right aero-extension controller

eRX-TT控制器一对 · ¥842Component · 2026-08-24

pair of aero-extension controllers

Package boundary

TT brake levers with shift buttons and separate aero-extension controllers, not ordinary drop-bar road controls.

Option-level screenshot prices, not checkout totals. The selected carbon/large-pulley full kit showed ¥4,796.10 after a ¥2.90 coupon reduction from ¥4,799. The repeated ¥400 difference between electronics-only and full-kit options suggests the caliper pair, but that bill of materials remains to be confirmed. Eight unseen options are not inferred. No public listing URL or private buyer data is retained.

来源L-TWOO eRX-TT Taobao kit and control prices
SRAM GX AXS / Eagle Transmission山地
 山地MTB controller and drivetrain packages; no drop-bar brake levers or road hydraulic calipers. ¥2,950–5,500Taobao options · 2026-08-24
详情

已记录套餐

24款GX 电变指拨+后拨 不含电池充电器 · ¥2,950Electronics only · 2026-08-24

controller and rear derailleur; battery and charger excluded

24款GX电子部分 指拨+后拨+充+电池 · ¥3,340Electronics only · 2026-08-24

controller, rear derailleur, charger and battery

24款GX小套（指拨+后拨+链+飞+充...） · ¥4,550Partial groupset · 2026-08-24

controller, rear derailleur, chain, cassette and charging items; label ending hidden

24款GX宽版中套【带1个护盘】牙盘... · ¥5,450Partial groupset · 2026-08-24

wide medium kit with one guard; remaining dimensions hidden

24款GX宽版中套【带护盘】牙盘32T165 送中轴 · ¥5,500Partial groupset · 2026-08-24

guarded wide medium kit, 32T, 165 mm crank, bottom bracket shown as gift

Package boundary

MTB controller and drivetrain packages; no drop-bar brake levers or road hydraulic calipers.

Option-level screenshot prices, not checkout totals. Only five materially distinct readable options are recorded; five additional ¥5,500 crank rows and twenty unseen options remain unverified. The ¥5,500 package appears to include crank, cassette and chain, so it is not comparable with road shift-and-brake kits. No public listing URL or private buyer data is retained.

来源SRAM GX AXS / Eagle Transmission Taobao option prices
How package labels and prices are normalized
Shift-only
Levers, derailleurs, battery, wires and charger.
Shift-brake
Shift-only plus calipers and hoses.
Partial groupset
Shift-brake plus only some of crank, cassette, chain or rotors.
Full groupset
An exact, itemized list of every included component.
OEM take-off
Removed or split from a complete bike; retail packaging and warranty may be absent.

Seller labels such as 小套, 中套 and 大套 are retained as option text, never treated as standard packages. Taobao observations are option-level screenshots rather than verified checkout totals.