Crank Brothers Synthesis AL eMTB Rear Wheel - XD Driver - Black - 12x148mm Boost - 6 Bolt - Rear - 27.5+ Inch PLP|Largest Cog These hubs are pretty loud

These hubs are pretty loud and you'll sound like you have a swarm of killer bees chasing you

39mm OD BB's such as Shimano XTR and Dura-Ace bottom brackets

and matching shifter

The 30T 104BCD option comes with special bolts and spacers included

Crank Brothers Synthesis AL eMTB Rear Wheel - XD Driver - Black - 12x148mm Boost - 6 Bolt - Rear - 27.5+ Inch PLP|Largest Cog These hubs are pretty loudBuilt For E MTB. Wheels sold individually, not in sets. Tuned Front and Rear Alloy Wheel System for E MTB riding and racing. Front and rear specific wheels are tuned and optimized to address the specific performance requirements and loads of mountain bike riding. Compliant tuned front wheel improves handling and maximizes grip and control in turns. Stiff tuned rear wheel Specifications Compatibility: Tubeless ready compatible Engagement: 17 ETRTO: