Thanks for your patience everyone during this website migration. Order checkout is now fully enabled!

There are clearly many visual glitches with the layout and the image and video embedding that we are working to iron out. 


Rear RTR

Grin's Ready-to-Roll (RTR) kits are largely pre-configured hub motor packages that include a downtube battery pack with an integrated Baserunner Motor Controller. They are clean to install and use our new waterproof CA3-WP device with integrated handlebar switch for turning the system on and off and adjusting pedal assist levels. See the RTR Intro Video or the Kits Summary Page for details on the motor choices, and the Advanced PAS Page to understand the PAS and Torque sensors.

Set Descending Direction
View as Grid List

9 Items

per page
  1. Crystalyte H Rear Thru-Axle Ready-to-Roll Kit

    From USD$800.00

    To USD$2,660.00 Regular Price USD$2,668.00

    Add to Compare
  2. DD45 Ready-to-Roll Kit

    From USD$675.00

    To USD$2,363.00

    Add to Compare
  3. G310 Rear Minimal RTR Kit, Custom Wheelbuild

    From USD$555.00

    To USD$2,041.00

    Add to Compare
  4. G310 Rear Ready-to-Roll Kit, Prelaced

    From USD$615.00

    To USD$1,919.00

    Add to Compare
  5. GMAC Ready-to-Roll Kit

    From USD$855.00

    To USD$2,548.00

    Add to Compare
  6. Rear Fatbike Ready-to-Roll Kit

    From USD$630.00

    To USD$2,161.00

    Add to Compare
  7. RH212 Ready-to-Roll Kit

    From USD$615.00

    To USD$2,381.00 Regular Price USD$2,389.00

    Add to Compare
  8. NEW
    SX2 Rear Ready-to-Roll Kit

    From USD$565.00

    To USD$2,119.00

    Out of stock
    Add to Compare
Set Descending Direction
View as Grid List

9 Items

per page