SRAM Level Disc Brake - Front - Right Lever - Black YGroup_7033471631405 It has a max output

It has a max output of 80 lumens in daytime flash mode otherwise it sits at a very visible 20 lumens in economy mode which lasts up to 11 hours on a full charge and can be recharged via USB

Disc-E Endurance or EXOTherm 2

BR-M8000 - XT

Obviously you'd want to take precautions so that you don't scratch anything in there though

this is only for Presta valves

SRAM Level Disc Brake - Front - Right Lever - Black YGroup_7033471631405 It has a max outputNEW RULES The SRAM Level brake levels the playing field with power and reliability stuffed into a lightweight package. This is no nonsense performer, but don't let its understated disposition fool you Level gives you the art of braking in minimalist form. Specifications for Level: WEIGHT: 430g (direct mount, 800mm hose, 160mm G2 rotor) LEVER MATERIAL: Stamped aluminum CALIPER DESIGN: 2 piston caliper FINISH: Black ROTOR: NOT INCLUDED PAD: Steel backed