(see link below)

The Shimano XTR BR-M9120 Trail Disc Brake Caliper features four pistons for increased braking power and heat distribution

These are required if your frame or fork has an IS mount and to fit your caliper and/or adjust your rotor size

Tighten bolts with 5-6Nm force

Whatever compresses your fork really

Royal Racing Core Short Sleeve Jersey - S - Flo Yellow Heather PLP|Model Year (see link below)Casual yet technical, fast wicking, UV and antimicrobial treated. Looks and feels like a cotton t shirt. This 85% Polyester 15% Cotton mix looks like your favourite tee but performs like a tech ride jersey you won't believe the performance until you try it. The Core jersey also drys up to 4 times faster than cotton. Core Jerseys are UV Treated and you might think this an extravagance for a company with its roots in the Pennines and Welsh Valleys.