Bike 12mm QR Adapter Thru Axle Hub Adapter 12 175L P1.75 19L Description: Made of high quality aluminium alloy, sturdy, non-deformation, features high strength, resistant to high temperature and abrasion, durable for long time use. Ultralight, adding no burden to bike, good for reducing the weight of bike. Easy to install: the Dia 12mm through axle through the axle. Light and compact, and it won't put much strain on your bike. Easy to install and remove using the M6 Allen key (not included). Denticulate hinge distance : 1.0/1.5/1.75mm, overall length: 62mm 165mm 168mm 171mm 174mm 175mm, Tooth grain length: 14mm 0.16m 17mm 19mm. Great accessory for your mountain bike, offers stable performance and high reliability. Specification: Material: Aluminum Alloy Color: Black Package Includes: 1 Piece Rear Hub Thru Axle