u/AdventurousJunket160

Image 1 — Topstone Lab71 Chainline Problem
Image 2 — Topstone Lab71 Chainline Problem
Image 3 — Topstone Lab71 Chainline Problem
Image 4 — Topstone Lab71 Chainline Problem
▲ 1 r/ultracycling+1 crossposts

Topstone Lab71 Chainline Problem

Hi all, I had my Lab71 built up in 2024, all good apart from my chainring being to close to my chainstay.

The bike shop haven’t really got an answer apart from a spacer to resolve the issue until I discovered that the Dub spindle was a normal road with not a wide which is specified for the Frameset.

So I swapped it for a wide which moved the chainring out satisfactorily. However I now have a jaunty angle to my chainline which may be visible in the pictures. I have a mullet setup Eagle rear mech on xdr hub 10-52 cassette with 40t front force charging.

The chain comes off the top pulley wheel and so extra strain is put on the chain wear. It generally shifts ok but I need a solution as I do long miles training for an ultra in July.

Any advice solutions welcome please.

u/AdventurousJunket160 — 3 days ago