For most people, the gap between the top model and the entry-level model isn’t ability, but frequency. The Sign-E13 Carbon uses the same carbon frame and the same drivetrain concept as the EX, with a Shimano EP801 motor and a compact 400 Wh battery, but opts for Shimano XT Di2 instead of XTR for shifting. Electronically, it shifts just as precisely—only a bit heavier. The frame offers 130 mm of rear travel and 140 mm up front, with total weight starting at 18.9 kg. An e-trail bike you’ll happily ride even when you wouldn’t actually need the motor.