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8th Gen Fork Lowers on 6th Gen & Compatible Brake Discs

1 posts Started 21 Apr 2026 Last recovered post 21 Apr 2026 Wayback Machine snapshot 15 May 2026

#1

Hello all! 
 

So I started a project on a whim when I managed to score a pair of 8th gen lowers for cheap on fleabay. Managed to swap over my forks and Andreani cartridges from my 6th gen lowers… BUT.

In my eternal wisdom and short foresight, I assumed that since the 8th gen used 310mm discs, I could get away with using CBR1100XX discs (310mm with the same mounting configuration as the 6th gen wheel). However, I forgot that brake disc offsets were a thing and now I’m stuck with a wheel that can’t fit between the forks. The 8th gen offset is 8.5mm whereas the Blackbird has an offset of 17mm.

Does anyone know of a brake disc that would fit or how viable would it be to machine the mounting surface on the wheel to shave off a couple mm to correctly align the brake disc? 

Hope you guys have a great week!

End of thread · 1 posts recovered Wayback Machine snapshot 15 May 2026