The Roadmachine AMP has hidden power thanks to Mahle's benchmark, ultra-compact hub drive unit, which has a leading power-to-weight ratio. While it looks, handles and performs like a Roadmachine, this e-road bike assists you through the tough parts so you can achieve more. There's a Premium Carbon D-Shape seatpost and RSM stem. The more affordable AMP has a mechanical shifting, Shimano 105 compact groupset, tubeless-ready XRD-522 wheels and 30mm tires.