Shimano XT SL-M8100 Shift Lever mountain wheels make sure the frame is

make sure the frame is clean with no dirt or oils hanging around

Weighing in at 1300grams

650b diameter

It closes up the connection on your steerer tube

Shimano XT SL-M8100 Shift Lever mountain wheels make sure the frame isNice crisp consistent shifts via a ball bearing. You get RapidFire Plus which moves 4 gears on the upshift and 2 gears on the downshift (pushing the lever you get 2 down, pulling the lever you get 1 down) Handy if your trails have lots of rapid changes. Instant release means you get the shift on the push of the lever and you can drop gears with either a push or pull. Basically if you want the best performance for price, XT tops it. 133g 12 speed 4