⭐ Club Tested
Swapped one of these into a clubmate's fat bike over winter — smooth out of the box and still spinning free with zero play months later.
CNC high-strength steel construction · Sealed bearing design · Fits BSA 68-120mm shells · Multiple axle lengths for square taper cranksets
Covers BSA shells from 68mm right up to 120mm, with axle lengths from 110.5mm to 174mm — one bracket family for mountain, snow and fat bike frames.
Fully sealed cartridge bearings keep grit, mud and water out, so it keeps spinning smooth through wet rides and winter mud.
CNC-machined high-strength steel body — no cheap alloy shortcuts, just a bracket that shrugs off the pounding fat and snow bikes dish out.
Bottom bracket plus two fitting screws — ready to thread straight in.
| Brand | BUCKLOS |
| Material | CNC high-strength steel |
| Structure | Sealed bearing |
| Shell fit | BSA 68/80/90/100/110/120mm |
| Weight | Approx. 320-420g |
| Use | Mountain / snow / fat bike |
Grab the size that matches your frame and get spinning.