X35 SP1 Range Extender
X35 SP1 Range Extender
X35 SP1 Range Extender

X35 SP1 Range Extender

X35 310 000 01 002

Regular price$649.99

Free shipping on all orders over $49. $9 shipping for orders under $49.

Cannondale, Santa Cruz, Cervelo, Gazelle, BMC, and *other bikes ship for FREE, but Gold Label Assembly will be added at checkout for only $79 (reg. $100) to cover the professional bike build and re-packaging by our certified technicians. It’s bike shop quality, direct to your door!

Some bikes not eligible for shipping due to manufacturer restrictions.

Shop with confidence! It's important to us that you are happy with your Mike’s Bikes purchase so we offer offer a 30-day return/exchange window for your unused gear and 14 days on all bikes. Our exchange and return process is fast and easy. If you choose to exchange for a different size or color, we will ship your product for free.

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The Mahle SP1 Range extender battery provides 36V/250W of additional power bringing the total capacity to 450W. The Range extender includes a holder that mounts to the water bottle bosses on the frame. It charges the main battery while riding, and offers a parallel power supply to the motor when the power draw exceeds 2A.


  • 36V 250W Panasonic
  • BUS Compatible (Smart), Balanced operation as charger or independent battery
  • The Mahle charger will recharge both the main and range extender batteries at the same time

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