Introduction


This article is a supplement to All About Your Belt, the main resource for all belt-related topics. This article explains how to adjust the belt on the Roadster Gravel Edition with the two-bolt tensioner shown below. If you have a different version please refer to the links below. As with all ebikes, pay special attention when working around the rear wheel not to damage the motor cable exiting the hub. Damage done to this cable by the rider is not covered under warranty.


Roadster V2 Belt Adjustment

Gravel Edition Single bolt Dropout Adjustment


TABLE OF CONTENTS


Tools Required

  • 2.5mm allen wrench
  • 5mm allen wrench
  • 18mm wrench


Getting started


  1. Loosen the 4 (two on each side) 5mm allen bolts. You do not need to remove them just enough to allow the axle to slide.
  2. Adjust the 2.5mm tensioner bolts shown below evenly on both sides to adjust the belt tension as described in All About Your Belt. 
  3. Retighten the four 5mm bolts to 5-7Nm

Removing the Wheel

  1. Loosen the 4 (two on each side) 5mm allen bolts. You do not need to remove them just enough to allow the axle to slide.
  2. Adjust the two adjustment bolts shown above all the way out 2.5mm allen wrench.
  3. Remove the two caliper mounting bolts with a 5mm allen wrench.
  4. Remove the brake caliper and let it rest to the side, wrapping it in a towel will prevent paint damage.
  5. Now the belt can be lifted off the rear wheel cog and set on top of the belt on the frame above the rear wheel.
  6. Disconnect the motor cable and cut only the zip tie(s) nearest the motor. 
    • Note: the zip ties in front of the plug should stay on. Verify they are preventing the cable from touching the crank wheel and the tire of the bike.
  7. Slide the dust cover up the motor cable
  8. Carefully loosen the 18mm axle nuts on either side of the rear wheel. Be careful not to damage the motor cable when doing this.
  9. Remove the rear wheel by sliding it straight down out of the dropouts. The axle has two flat sides on it. Important: note the orientation of these flats for easy reinstallation.


Reinstalling the Wheel

Repeat the steps above in reverse order. The brake caliper will need to be adjusted along with the belt tension. The articles linked below detail the processes. 

  • The axle has two flat sides on it. Important: note the orientation of these flats for easy reinstallation.
  • Tighten the Axle nuts to 60Nm when done.


Gravel Roadster V2: Brake Adjustment and Pad Replacement


All About Your Belt


Thank you for reading. If you have any further questions about your ebike please reach out to our Contact Us page we are glad to help!