very light

An independent testing facility (Virginia Tech) even rated the A1 MIPS among the top 5 out of over 100 helmets they tested in 2019

or purchasing a compatible Shimano Linkglide 11-speed rear derailleur

side panels

or at the local brewery

Ride Mechanic Bike Mix All Purpose Lubricant - 50ml PDP|PLP|Rail Material very lightRide Mechanic Bike Mix is an All Purpose chain lubricant that combines the desirable features of both wet (durable) and dry (clean) lubricants. It is dry enough to not attract dust and grime buildup but it is also wet enough to last for at least 12h in dry and dusty off road conditions. Bike Mix is the ultimate mountain bike lube for several reasons: It has excellent penetrating cleaning degreasing properties to remove grime buildup and assist lube