Evidence reviewed through . Price records retain their own observation dates and conditions.View sourcesMethodology and dataset

LightCarbon · 轻碳Complete bikeResearch profile

LightCarbon Speed7 105 mechanical complete bike

¥11,399China price · 2026-08-08
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Category
Climbing road
Tire clearance
32 mm

Overview

LightCarbon Speed7 105 mechanical complete bike. The official Chinese catalog resolves Speed7/速7 as LCR017-D and supplies exact platform specifications, while the retained mechanical-105 package weight remains unproven.

The recorded complete-bike price is ¥11,399; its date and basis remain visible below.

Buying context

Before buying, verify Exact retained mechanical-105 bill of materials and complete-bike weight basis; Current checkout and domestic warranty/after-sales entity; Controlled independent exact-frame stiffness evidence.

Specifications and evidence

Product type
Complete bike
Category
Climbing road
Evidence maturity
Research profile
Price basis
China price · 2026-08-08
Drivetrain
Shimano 105 mechanical listing claim
Wheels
Carbon wheelset listing claim; exact wheel model and package mapping remain unverified
Frame
Speed7/速7 is the official Chinese-market alias for the LCR017-D Toray T700+T800+T1000 platform
Tire clearance
32 mm
Tire clearance basis
Official Chinese catalog alias bridge to the exact LCR017-D manufacturer maximum
Factory weight context
Manufacturer social post claims 7.8 kg for 7120, 7.5 kg for 7170 and 7.2 kg for 8170; none is mapped to the retained mechanical-105 package
Frame stiffness status
Qualitative ride evidence is available; no numeric frame-only measurement is recorded.
Stiffness evidence
A review of the exact LCR017D platform reports solid behavior under load for a custom review build. In a later public comment, the author attributes higher stiffness to the box-shaped downtube. Qualitative review and community-report evidence; no numeric baseline or controlled frame-only test, and the selected factory quality/build is not mapped to the retained mechanical-105 package.
Separate owner custom build reference
A post published2025-11-09 describes a Speed7/017 custom bike with a GRX/UltegraDi2 mix, R7000 chain/cassette, XXE/Xcadey, Goldix180SL custom wheels and MVMT cockpit, and claims6.98kg including clipless pedals. Size and scales/method are unstated. This is separate owner-build context; retained mechanical105 complete weight/BOM and SPEEDZ identity remain unresolved. Hypothetical6.8kg and title10k are not observed weight/exact price.

The official Chinese catalog maps 速7 to LCR017-D. Its 32C maximum therefore applies to the retained platform, but factory 7.8/7.5/7.2 kg social claims are not assigned to the retained mechanical-105 build. September22 follow-up adds attributed qualitative ride evidence with its build and source caveats; it does not supply an exact complete weight or maximum clearance.

Price history

ObservedPriceTypeConditions
¥11,399Observed market recordlisted complete-bike/four-piece package

About LightCarbon

Xiamen LightCarbon Composite Technology says it was founded in 2012 and designs, engineers, tests and manufactures carbon frames and components in Xiamen. The company reports a dedicated frame factory with around 80 employees and capacity of about 2,000 framesets per month; it sells LightCarbon products directly while also doing OEM and ODM work for other brands.

Visit the official LightCarbon website

Sources

These sources support this model page; individual claims retain the confidence of their cited source.

  1. LC-SPEED 7整车

    LightCarbon factory account · Manufacturer social postIdentity: High · Specification: Medium · Price: None · accessed 2026-08-20

    Opened public detail from the manufacturer account visibly states complete-bike weight claims of 7.8 kg for the 7120 configuration, 7.5 kg for 7170, and 7.2 kg for 8170. These are configuration-specific social-post claims retained for the separate Speed7 candidate; they are not propagated to the published SPEEDZ variant or treated as a measured universal weight.

  2. LC-SPEED 7国外客人返图

    LightCarbon factory account · Manufacturer social postIdentity: High · Specification: Low · Price: None · accessed 2026-08-20

    Opened public detail identifies an exact LC-SPEED 7 customer-return post and visibly includes a PROX wheel hashtag. No exact wheel model, depth, or complete-bike BOM is exposed; retained only as candidate context.

  3. Anonymized Taobao search-card snapshot — 2026-08-08

    China Bikes · Anonymized marketplace snapshotIdentity: Medium · Specification: Low to medium · Price: Medium · accessed 2026-08-08Archived evidence; no public link

    42 screenshots and 160 listing observations were normalized into 133 model groups. Listed, coupon, subsidy, and first-order conditions are preserved in the research ledger. Screenshots, purchase source identities, and private data are not redistributed.

  4. 2025–2026 LightCarbon frame and component catalog (Chinese edition)

    LightCarbon · Manufacturer catalogIdentity: High · Specification: High · Price: None · accessed 2026-09-01

    The official Chinese catalog renders the brand as “LightCarbon轻碳” and explicitly maps 速7 to LCR017-D. It publishes the exact platform material, size-52 matte-frame 870±30 g claim, 390±15 g fork, 160±10 g seatpost, 32C maximum and geometry.

  5. LightCarbon LCR017-D super-light road frameset

    LightCarbon · Manufacturer product pageIdentity: High · Specification: High · Price: None · accessed 2026-09-01

    Current exact LCR017-D page still publishes construction, size-specific weights, 32C maximum, T47-68, UDH, cockpit, ISO4210 and two-year warranty, but no public retail price or mainland China checkout.

  6. LightCarbon LCR017D review: custom review build

    Hambini Engineering · Independent product reviewIdentity: High · Specification: Medium · Price: Low · accessed 2026-09-22

    Review published2024-09-15 reports solid behavior under load for the author's personally assembled LCR017D with a selected factory quality specification. This is qualitative build-specific evidence, not a controlled frame-only stiffness test or proof of the retained Speed7 mechanical105 build. Worker and parent read review body. The 8.2kg and box-downtube claims are separate comment replies, not review-body measurements.

  7. LCR017D author comment replies: loaded weight and downtube stiffness

    Hambini Engineering public comments · Public community commentIdentity: Medium–high · Specification: Medium · Price: Low · accessed 2026-09-22

    Public admin reply dated2025-01-21 reports8.2kg including lights, pedals, Garmin and other equipment, without complete BOM/size. Reply dated2025-05-12 attributes higher stiffness to the box-shaped downtube without a numeric result or stated baseline. These remain community-report evidence even though the account is the article author. Parent read the dated comment sections; no selected-build mass is assigned.

  8. LightCarbon LCR017-D official price recheck

    LightCarbon · Manufacturer product pageIdentity: High · Specification: High · Price: None · accessed 2026-09-23

    The exact official LCR017-D page identifies China as product origin and lists PayPal or bank transfer, but provides no public price; ordering remains inquiry-based. It does not confirm a current quote or mainland China delivered total.

  9. lightcarbon-lcr017-d exact product evidence and gallery

    LightCarbon · Manufacturer product pageIdentity: High · Specification: High · Price: None · accessed 2026-10-02

    Current manufacturer package: frame, fork, seatpost, clamp, headset bearings, spacers, thru-axles and HBR17. T47 bottom bracket is a paid option, excluded by default; historical quoted package remains unverified. 2026-10-02 current size-46 reach is 371 mm; the retained historical range begins at 370 mm. Keep both dated bases and confirm the production revision before fitting.

  10. LightCarbon Speed7/017 separate owner custom-build reference

    XHS public post; publisher authority unverified · Public product postIdentity: Medium · Specification: Low · Price: None · accessed 2026-10-03

    Owner custom-build post names017 and Speed7, describes mixed GRX/UltegraDi2 with R7000 chain/cassette, XXE/Xcadey, Goldix180SL custom wheels and MVMT cockpit, and claims6.98kg including clipless pedals. Size/scales/method unknown. Separately scoped custom build; no retained mechanical105 weight/BOM or SPEEDZ identity transfer. Hypothetical6.8kg and title10k are rejected as observed weight/exact price.