Oversized outside diameter +

they are also available for 35mm and 39mm fork tubes to suit various builds

New features include a more rugged built-in tool pouch

The lights are right at 3” diameter with a super slim profile

or a 16" rear with a high sidewall vintage style tire

Battery Box 4L-BS w/ Breaker Mount for OEM Harley-Davidson Horseshoe Tanks Subcategory_Air Filter Elements Oversized outside diameter +This is intended as an adapter for fitting a 4L BS battery to most standard battery compartments, including OEM Harley Davidson Horseshoe oil tanks, and it has a dual Bussmann Automotive Circuit Breaker mount integrated into the top strap. This size battery is mostly suited for kick start only bikes. 3D printed from Carbon Fiber reinforced Nylon. Made in the USA. Most any 4L BS battery should work, just check that it is 3 3 8 Tall, 4 1 2 Wide, and 2 3