LightCarbon LCFS918 29er Carbon Frame Full Suspension XC Frame

Reviews & Ratings

Component Deals & Selection on Chinertownabout 3 hours ago

The LightCarbon LCFS918 is a 29er carbon full-suspension XC/marathon frame with 110mm rear travel, designed around a 120mm fork. It features a linkage-driven single pivot suspension system, threaded BSA bottom bracket, Boost spacing (148x12mm rear, 110x15mm front), and internal cable routing (including through-headset routing on some models). The geometry is described as a blend of old-school and modern 'downcountry' with a 67.5° head tube angle, moderate seat tube angle, and reach around 480mm for size L. It supports two bottle cages (main triangle and seat tube). Early models used a 165x38mm (6.5x1.5in) standard mount shock, while newer versions switched to a trunnion mount. The frame is praised for its clean design, light weight, and good value, but some users report issues with bearing quality, cable routing, and manufacturing tolerances.

AI Summary

Pros

Good value for money with competitive pricing
Lightweight frame and overall build potential
Clean, original design (not a copy of other brands)
Good geometry for XC, marathon, and technical riding
Threaded bottom bracket and modern standards (Boost, UDH on newer models)
Capable of very light builds (sub-11kg reported)

Cons

Internal cable routing through headset can cause binding, cable damage, and is fiddly to service
Bearing quality and longevity issues, with some failing quickly or requiring frequent replacement
Limited rear shock options due to unconventional sizing (165x38mm standard mount on early models)
Manufacturing tolerances and quality control issues (e.g., misaligned linkages, stripped threads, paint flaws)
Chainring clearance is tight, with 36T being maximum and potentially problematic
Limited frame size availability (only M and L initially, no XL)

Key Points

Frame price: ~$550-$590 plus shipping
Frame weight: ~1.9kg (size L)
Material: Carbon fiber
Rear travel: 110mm
Recommended fork: 120mm
Head tube angle: 67.5°
Rear shock: Early models: 165x38mm (6.5x1.5in) standard mount; Newer models: trunnion mount
Bottom bracket: Threaded BSA
Spacing: Boost (148x12mm rear, 110x15mm front)
Derailleur hanger: UDH on 2023+ models, non-UDH on earlier models
Cable routing: Internal, with through-headset routing on some models
Bottle cages: Two mounts (main triangle and seat tube)