The Magicshine Allty - Front 1000 Lumen LED Light is Magicshine's newest all-in-one light

Outer width (30mm)

AeroMeshTM

While they might be ok for drivetrain duties

Lezyne Chain Checker Gauge - 5-12 Speed netsuite-webdata-created The Magicshine Allty - FrontSensibleand stylish, the Chain Gauge is a multi function bike chain checker featuring an integrated chain hook and wear indicator as well as a handy valve core removal tool. Compatible with most 5 12 speed bike chains and precision machined for superior accuracy, the Chain Gauge is a stainless steel insurance policy against premature drivetrain wear. Hang it close to your repair stand with the included ring so youll never go too long without checking