WTB Proterra Tough i30 Rear Wheel - 29", 12 x 142mm, 6-Bolt, Black, HG 11 MTN, 32H Headset Spacers and power cable are universal

and power cable are universal between Dura-Ace 7970 and Ultegra 6770 Di2 systems

ultra-low friction SKF wiper seals and Maxima Plush Fluid

Manufacturer Part Number: DIVSL80316

Manufacturer Part Number: 306-38576-A002

UPC: 840511036026

WTB Proterra Tough i30 Rear Wheel - 29", 12 x 142mm, 6-Bolt, Black, HG 11 MTN, 32H Headset Spacers and power cable are universalProterra Tough i30 wheels keep the trail in check while everything else blurs by in the periphery. Reinforced by WTBs proven Dual I Beam support, Proterra Tough rims feature a 30mm internal width to provide higher tire volume while also increasing sidewall support at lower pressures. Choose Proterra Tough when you need a wheel that wont let you down. Frequency Hub with top tier EZO bearings 30mm TCS Tubeless compatible rims with 3 cross lacing and