While they might be ok for drivetrain duties

So POC has created the lightweight VPD Air sleeve as an option for those riders who are looking for a minimal level of padding and reinforcement but with the highest levels of comfort

and a glueless patch kit so you'll be ready to deal with unpleasantries out on your ride

Vibration-damping material with a snug fit to prevent rattling (trimmed to fit in smaller diameter bars)

durable and protective

Lezyne Chain Checker Gauge - 5-12 Speed netsuite-webdata-created While they might be okSensibleand 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