No playing with sprockets either, #1, it is mounted on a mag rim so nothing to fiddle with as far as rag joints etc...#2 with my setup, it can only use a 36 tooth sprocket do to clearance issues that a sprocket that was any larger would have.
With a 203mm read brake disk, you have to pre-measure and calculate exactly where and how you mount the brake calipers you are not hitting the chain/sprocket.
I have 2 matchbook widths amount of space between the bottom of the caliper and top of the drive chain.
Designing and measuring my own homemade frame to caliper adapter was also not "luck"...Everything I do on these bikes are totally planned in advance before I finalise any build.
My homemade frame to caliper adapter brace:
With a 203mm read brake disk, you have to pre-measure and calculate exactly where and how you mount the brake calipers you are not hitting the chain/sprocket.
I have 2 matchbook widths amount of space between the bottom of the caliper and top of the drive chain.
Designing and measuring my own homemade frame to caliper adapter was also not "luck"...Everything I do on these bikes are totally planned in advance before I finalise any build.
My homemade frame to caliper adapter brace: