Chinese Bikes

证据复核截至 。价格记录保留各自的观察日期和条件。查看来源方法与数据集

SEKA整车研究资料

SEKA Spear (standard frame) 105 Di2 dealer build

¥20,800国内价格 · 2026-10-24
选择另一辆车
车型类别
气动公路
整车重量
7.0 kg
轮胎空间
32 mm
中轴
BSA threaded, 68 mm
尺码
XS, S, M, L and XL, plus racing MR and LR

本页提供中文导航、概要与规格标签；型号、来源标题及尚未逐条翻译的详细研究和报价备注保留原文。请结合原始来源核对具体配置与条件。

概览

SEKA Spear (standard frame) 105 Di2 dealer build 的研究资料。整车重量记录 7000 g；轮胎空间记录 32 mm。价格观察日期为 2026-10-24；不是实时结算报价。具体配置、测量口径与待确认问题见下方；未知信息不代表产品质量差。

原始研究说明（英文）

A fully itemised dealer build on the standard Spear frame with 105 Di2 and Magene carbon wheels.

已记录整车报价 ¥20,800；报价日期和适用条件列在下方，购买前仍需核对。

购买参考

下单前请核对目标尺码、准确配置、套餐内容与最终报价；下方原始研究记录列出了尚未解决的问题。

待核实事项原文（英文）

Cockpit and seatpost sizes in this build (SEKA framesets ship with a Rapier bar); Exact selected-size stock, warranty and checkout total

规格与证据

产品类型
整车
车型类别
气动公路
证据成熟度
研究资料
价格依据
国内价格 · 2026-10-24
变速系统
Shimano 105 Di2 R7170 full groupset system reference
轮组
Magene Ultra Dark 508 carbon-spoke, 50 mm front / 58 mm rear
轮胎
Michelin Power Cup clincher with Magene TPU tubes
整车重量
7.0 kg
整车重量口径
Dealer-stated build weight; size not stated
车架
Spear Standard carbon frame with the Wind Eye seat cluster. SEKA lists 780 g for a size-M bare frame without paint or metal parts (775 g unpainted in the 2024–25 catalog, 860 g painted Twilight Blue).
车架材料
Carbon. SEKA publishes fibre grades only for the RDC frame (TeXtreme and pitch-based fibre).
车架成型工艺
SEKA's Spear pages and the Standard store listing describe one-mould True-One-Piece construction; the frame routes cables internally through SEKA's Rapier bar system
刚性证据
No stiffness figure is published for the Standard frame; SEKA's 5% stiffness and 14.5% stiffness-to-weight gains compare the RDC with Exceed RDC.
轮胎空间
32 mm
轮胎空间依据
Official Spear maximum actual tyre width, front and rear, for both RDC and Standard frames (current global and China pages; 2024–25 catalog). The dealer does not state its tyre width.
中轴
BSA threaded, 68 mm
尺码
XS, S, M, L and XL, plus racing MR and LR

Other documented builds

这些是不同配置，不会将它们的重量、变速系统与价格拼接到目录参考行中。

Different dealer: standard frame Ultegra Di2 + DT Swiss ARC 1100 50Drivetrain: Shimano Ultegra Di2 R8170Price: ¥32,999 on 2026-10-24 — 苏州波波单车 standard-frame optionWheels: DT Swiss ARC 1100 50 mm
Owner build: size-L Standard, 105 Di2, Voso 50 mm wheelsDrivetrain: Shimano 105 Di2 R7170 with a Dura-Ace chainWeight: 7.5 kg — Owner-stated; pedal, computer and power-meter inclusion not statedWheels: Voso Ultimate 50 Ultra carbonTires: Continental GP5000 STR 28 mm tubeless

Owner build after about 18 months; not a dealer package and no price.

价格记录

观察记录价格类型条件
¥20,800Observed market recordHomeBike custom-build listing, any size · Made to order with a deposit; ¥20,800 is the full price.

几何

Official Spear chart for both RDC and Standard frames, identical on the current product page and in the 2024–25 catalog; millimetres and degrees.

Dimension names follow the letters on SEKA's drawing; inseam height is measured 50 mm ahead of the bottom bracket with a 680 mm tyre diameter.

横向滚动可查看所有尺码。键盘操作：聚焦表格区域后使用方向键。

各尺码的几何记录
尺寸项目XSSMMRLLRXL
Stack508524543538570560600
Reach362370379386389397402
Trail68625858585755
C1 seat tube449463480476508496535
RC chainstay410410410410410410410
H bottom-bracket drop74747272727272
FC front centre570574574578591585608
WB wheelbase9699739739789909951008
L head tube107120136130164153193
N top tube498514534540557563585
Q1 head angle70.671.772.9737373.173.5
Q7 seat angle7574.8747473.573.573
F fork offset48484444444444
G fork length372372372372372372372
Inseam height725738759753786774814
Recommended rider height (cm)150-163161-173170-180171-186177-187179-194185-198
原始几何表转录
Geometry complete current manufacturer table
Official Spear chart for both RDC and Standard frames, identical on the current product page and in the 2024–25 catalog; millimetres and degrees. Printed size columns: XS / S / M / MR / L / LR / XL. Stack: 508 / 524 / 543 / 538 / 570 / 560 / 600; Reach: 362 / 370 / 379 / 386 / 389 / 397 / 402; Trail: 68 / 62 / 58 / 58 / 58 / 57 / 55; C1 seat tube: 449 / 463 / 480 / 476 / 508 / 496 / 535; RC chainstay: 410 / 410 / 410 / 410 / 410 / 410 / 410; H bottom-bracket drop: 74 / 74 / 72 / 72 / 72 / 72 / 72; FC front centre: 570 / 574 / 574 / 578 / 591 / 585 / 608; WB wheelbase: 969 / 973 / 973 / 978 / 990 / 995 / 1008; L head tube: 107 / 120 / 136 / 130 / 164 / 153 / 193; N top tube: 498 / 514 / 534 / 540 / 557 / 563 / 585; Q1 head angle: 70.6 / 71.7 / 72.9 / 73 / 73 / 73.1 / 73.5; Q7 seat angle: 75 / 74.8 / 74 / 74 / 73.5 / 73.5 / 73; F fork offset: 48 / 48 / 44 / 44 / 44 / 44 / 44; G fork length: 372 / 372 / 372 / 372 / 372 / 372 / 372; Inseam height: 725 / 738 / 759 / 753 / 786 / 774 / 814; Recommended rider height (cm): 150-163 / 161-173 / 170-180 / 171-186 / 177-187 / 179-194 / 185-198. Dimension names follow the letters on SEKA's drawing; inseam height is measured 50 mm ahead of the bottom bracket with a 680 mm tyre diameter.

About SEKA

Premium Chinese performance brand with sophisticated aero designs; public factory-ownership evidence is limited.

Visit the official SEKA website

视频

长期使用评测商业关系未明确

10,000km Later: Was My Chinese Superbike Worth It?

A 17-month, roughly 10,000 km follow-up on the reviewer's SEKA Spear.

David Arthur - Just Ride Bikes · 2026-06-22. How the frame was obtained is not stated; this is the same Ultegra Di2 Spear as his first review, professionally built by a UK shop. 披露依据.

要点

  • 适配检查3:56The large (about 56 cm) matched a Tarmac's stack and reach for him at 181 cm; the frameset comes with a chosen bar width and stem length, a sturdy computer mount and aero bottles.
  • 装车说明5:16SEKA sells framesets only, through one UK shop; the builder found clean bottom-bracket threads, steerer surfaces and good tolerances.
  • 做工与问题6:19Over about 10,000 km it was trouble-free and needed no warranty claims.
  • 骑行感受7:39He rates it as quick as a Madone, Aeroad or Tarmac (behind a BMC Teammachine R), with excellent cornering, but the stiff front end remains the one comfort weakness against a compliant seatpost and rear.
已核对自动字幕 2026-10-25. 由 Chinese Bikes 转述；要点仅适用于视频所示配置，不代表所有尺码或版本。
实车评测商业关系未明确

New Seka Spear review: Better than a Specialized Tarmac SL8?

A first-month ride review of the SEKA Spear built with Ultegra Di2, compared with the Specialized Tarmac SL8.

David Arthur - Just Ride Bikes · 2025-01-12. Sponsored segment for an unrelated camera; how the frame was obtained is not stated. The frame is a standard Spear judging by his £2,250 frameset price and weight comparison, built with Ultegra Di2 rather than the candidate's 105 Di2. 披露依据.

要点

  • 装车说明0:42The 'wind eye' openings at the seatstay junction are the signature feature; the one-piece bar has a flat, broad top profile he finds uncomfortable when climbing.
  • 发布时价格2:03Frame and fork retail at £2,250 in the UK, half a Tarmac SL8 frameset; frame weight is closer to a non-S-Works SL8, and SEKA offers a lifetime warranty but no complete bikes.
  • 骑行感受5:35Fast but not electric; on his test loop it was slower than pure aero bikes but quicker than a Van Rysel RCR, and it reminds him of a Tarmac SL7.
  • 骑行感受7:33The front end is very stiff and harsh on rough roads while seated comfort is excellent, so the bike feels unbalanced front to rear.
  • 适配检查9:15Five standard sizes plus two race sizes with lower stack and longer reach; at 181 cm he chose L with a 110 mm stem and no spacers.
已核对自动字幕 2026-10-25. 由 Chinese Bikes 转述；要点仅适用于视频所示配置，不代表所有尺码或版本。

来源

这些来源支持本车型页面；各项结论保留其引用来源对应的置信程度。

  1. SEKA Spear 105 Di2 HomeBike listing

    HomeBike on Taobao · Marketplace product pageIdentity: High · Specification: Medium · Price: High · accessed 2026-10-24

    Custom-assembled build at ¥20,800 for every size (3-5 units). Detail image: Seka Spear standard frameset, 7170 Di2 full groupset, MT800 (CL800) rotors, Magene Ultra Dark 508 carbon-spoke wheels (50 mm front, 58 mm rear), Michelin Power Cup clinchers with Magene TPU tubes, Power Comp saddle, Shimano PRO tape; 7 kg. The shop states a deposit is taken for custom builds; ¥20,800 is the full price. No buyer, account, delivery-address or transaction data is retained.

  2. SEKA Spear RDC complete Taobao dealer listing

    苏州波波单车 on Taobao · Marketplace product pageIdentity: High · Specification: Medium · Price: High · accessed 2026-10-24

    Dealer custom build (整车订制方案). Spec image: 8170 Di2, DT Swiss ARC1100 50 mm black label, Continental Sport tyres with Ride tubes, Guee tape, Prologo saddle, BBR60; frame choice RDC ¥36,999 or standard ¥32,999. Option data matched: two RDC options ¥36,999, standard ¥32,999; 3 units each. Pre-order 15 days, shipping included. No buyer, account, delivery-address or transaction data is retained.

  3. SEKA Spear product page and specifications

    SEKA Bikes · Manufacturer product page recheckIdentity: High · Specification: High · Price: None · accessed 2026-10-25

    One Spear page covers the RDC and Standard frames. Specification block: max tire width (actual) 32 mm, 700c, BSA threaded 68 mm, headset bearings 49.5×40.5×6.5 mm 45/45°, thru-axles front L118.6 mm M12×P1.0 and rear L165.2 mm M12×P1.5, saddle clamp for 7×7, 7×9, 7×10 and 7×11 mm rails. Weights: RDC 685 g and Standard 780 g bare frame, 729 g ±35 g for a size-M Shadow Black frame; weights vary with paint and size. Manufacturer comparisons with Exceed RDC: 5% more stiffness, 14.5% better stiffness-to-weight, 23% more vertical compliance with up to 17 mm seatpost deflection. Five regular and two racing sizes (MR, LR); the page's geometry image matches the 2024–25 catalog table.

  4. SEKA Spear 产品页与规格数据

    SEKA Bikes · Manufacturer product page recheckIdentity: High · Specification: High · Price: None · accessed 2026-10-25

    China specification block: front and rear maximum tire 32C (前后最大胎容量为32C), BSA threaded 68 mm, 700C. RDC 685 g and Standard 780 g are size-M bare-frame weights excluding paint and metal parts; an RDC Shadow Black size M is 729 g ±35 g. Vertical compliance 109 N/mm, 23% above Exceed; seatpost fatigue test 85 mm behind the post for 150,000 cycles at 144 kg, against the ISO reference of 70 mm, 50,000 cycles and 120 kg. Materials described for Spear: TeXtreme base layers, DIALEAD pitch-based 65T/80T and Pyrofil 30T/40T (FAW69) fibre, PMI foam filling and one-mould True-One-Piece construction. Rapier bar: 360–415 mm widths with 80–130 mm stems.

  5. SEKA 2024–2025 model-year catalog, Spear section

    SEKA Bikes · Manufacturer catalog recheckIdentity: High · Specification: High · Price: None · accessed 2026-10-25

    Rendered-pixel recheck of the catalog PDF (SHA-256 a9e36c0311028a6fbe1798902f583c899bb66ea040839543951bbcf0f70b5e1a). One Spear section covers RDC and Standard frames: Rapier integrated bar included with Spear framesets, mechanical and electronic shifting, max tire size up to 32c. Size-M frame weights: RDC 685 g unpainted and 729 g in Shadow Black (±35 g, accessories excluded); Standard 775 g unpainted and 860 g in Twilight Blue; paint changes weight by 20–100 g. Seven sizes (five regular, two racing), 0 or 15 mm offset seatposts, and a geometry table identical to the current official page. Rapier 375×100 mm is about 310 g painted, excluding metal parts.

  6. SEKA Spear Frameset (Standard) official store page

    SEKA Bikes · Manufacturer store product pageIdentity: High · Specification: Medium · Price: Medium · accessed 2026-10-25

    Global store product titled Spear Frameset, the Standard frame sold separately from the Spear RDC Frameset, at USD 2,201 in seven finishes (Currant Black, Achromatic Silver, Twilight Blue, Borealis Blue, Cosmic Beige, Mint Green, Frosty Blue) and sizes XS–XL including MR and LR; several options were in stock. The description repeats the Wind Eye and True-One-Piece moulding features. Gallery photos show frame, fork, seatpost and Rapier bar only, not a dealer complete build; global price and stock do not establish mainland China checkout.

  7. SEKA Spear product development manual current reopen

    SEKA Bikes · Manufacturer technical manual reopenIdentity: Medium · Specification: High · Price: None · accessed 2026-09-23

    The retained official manual geometry extraction was reopened. It is titled Spear and is not explicitly mapped to SPEAR RDC. The linked current manufacturer chart is image-only; preserve size availability but do not transfer the manual's numeric geometry to the RDC candidate.

  8. SEKA Spear Standard owner build after 18 months

    XHS owner post · 社区帖子Identity: High · Specification: Low · Price: None · accessed 2026-10-26

    Owner lists a Spear Standard frame in Achromatic Silver (素银), size L, after about 18 months of riding: Shimano 105 Di2 R7170 groupset with a Dura-Ace chain, 50-34 chainrings, Voso Ultimate 50 Ultra wheels, Continental GP5000 STR 28 mm tubeless tyres and a Rapier 40-100 bar. The owner states the bike has stayed at 7.5 kg; pedals, computer and power-meter inclusion are not stated. Components are the owner's choices.