The fattest addition to our jra wheel range. These wheels use our jra fat hubs in 135mm front, 170mm rear widths laced to Sun's 80mm wide, tubeless compatible Mulefut rims for some of the lightest, toughest fat wheels we could build.
The front jra hubs are interchangeable between 135mm QR, 135x15mm and 135x20mm (although we haven't seen a 135x20mm axle....yet). Rear are 170mm QR or 135x12mm, with 190mm QR to follow sometime in 2015. Other standards such as 142 or 150mm front, and 12x177mm rear, are not yet supported though we hope they soon will be.
The rear hub uses a 54-point engagement freehub with 6 pawls operating in 2 sets of 3 engaging at any one time. Pawls are individually sprung for reliability and the bearings used are high quality stainless steel. Freehubs are interchangeable between Shimano and Sram XD, and all spares are available through our website.
The Sun Mulefut rims are relatively light weight, strong and have very reliable tubeless performance. The bead locks hold the tyre tight for no burping and make tubeless inflation very easy with a standard track pump. Tubeless sealing is achieved by installing a standard fat bike rim strip (eg Surly "Rolling Darryl" rimstrip) and then applying a layer of duck tape / gorilla to the inside of the rim, across the whole width.
Spokes & nipples
Sapim D-Light spokes are light and tough, while black brass Sapim spoke nipples are corrosion resistant and complete the all-black look.
Please contact us after ordering with your choice of decal colour and axle/endcaps and colour of spoke nipples (if you don't want black).