This Fit Kit is for mounting an Old Man Mountain rack to the rear of your fat bike with a 12 mm thru axle. Kit contains: Fit Kit 807 contains all the parts to mount an Old Man Mountain rack to the rear of your fat bike: 12 mm thru axle with 217-229 mm length and 1.75 mm thread pitch, pair of 5" dropouts, pair of 14" extenders, pair of pucks, clear protective tape, and all mounting hardware. We partner with The Robert Axle Project to supply our thru axles.

This Fit Kit contains all the parts to mount an Old Man Mountain rack to the rear of your fat bike with a 12 mm thru axle: 12mm thru axle with 217-229 mm length and 1.0 mm thread pitch, pair of 5" dropouts, pair of 14" extenders, pair of pucks, clear protective tape, and all mounting hardware. We partner with The Robert Axle Project to supply our thru axles.

These are the zip ties included in with our Fit Kits. Special stainless steel metal tang on the zip tie provides high strength 50lb load rating. UV resistant material for outdoor adventures. We are happy to provide our supplier info so you can order greater quantities at lower prices locally. Fastenal is the supplier. Part number: 0790720 (Link)

217-229mm Archives - Old Man Mountain

Q: 12 mm Rear Thru Axle: 1.0 mm Thread Pitch and 229 or 217 mm Length

Axle is 12 mm in diameter. True length of axle is 229 mm, but can be shortened to 217 mm with included tapered spacer. Please note: Thru-axle lengths do not equal hub standards. An axle has to be longer than the hub to fit in the frame. A 12×148 hub does not equal a 148 mm long axle. This axle has a 1.0 mm thread pitch. The axle shaft and axle end are precision CNC machined. The axle shaft is 7075 aluminum and hard black anodized for rugged durability. The axle ends are stainless steel, which allow for mounting of the rack.

Q: 12 mm Rear Thru Axle: 1.75 mm Thread Pitch and 229 or 217 mm Length

Axle is 12 mm in diameter. True length of axle is 229 mm, but can be shortened to 217 mm with included spacer. Please note: Thru-axle lengths do not equal hub standards. An axle has to be longer than the hub to fit in the frame. A 12×148 hub does not equal a 148 mm long axle. This axle has a 1.75 mm thread pitch. The axle shaft and axle end are precision CNC machined. The axle shaft is 7075 aluminum and hard black anodized for rugged durability. The axle ends are stainless steel, which allow for mounting of the rack.

Q: Protective Tape - Set of 2

We provide protective clear tape to protect the finish of your frame or fork. It may need to be replaced after extended use. This includes a set of 2 pieces of tape, perfect to protect the finish of your frame or fork.

Rear Fit Kit 807

Rear Fit Kit 815

12 mm Rear Thru Axle: 1.0 mm Thread Pitch and 229 or 217 mm Length

12 mm Rear Thru Axle: 1.75 mm Thread Pitch and 229 or 217 mm Length

Protective Tape – Set of 2

Zip Tie – Set of 8