Roadster v2 belt adjustment issues

DavidD

New Member
Region
USA
I just purchased a Roadster v2 and have put about 50 miles on it. I'm a larger rider and put quite a bit of force on the pedals when pedaling uphill. At first, I noticed the popping/slipping when trying to go uphill, so I tightened the tension. I made adjustments to it several times until I could make it up some fairly steep hills without noise or slipping from the belt. Soon after, however, I've noticed a clicking in the belt. If I back off the tension, no more clicking however I get the slipping/popping on hills.

Does anyone have any advice for this?
 

DavidD

New Member
Region
USA
I also have a Roadster v2. Purchased last January. Same issue with mine.
Had a hard time finding the correct tension. Finally purchased a Gates tension tool.
I set mine 45 pounds. Seems to have solved the problem.
Good luck.
Just ordered the tool! Thanks for the tip. Will report back.
 

Ute4492

New Member
Just ordered the tool! Thanks for the tip. Will report back.
Some adjustment tips.
A bike stand that will hold the bike off the ground is most helpful.
You need to turn the crank several rotations after each adjustment to get an accurate reading.
Try to take the measurement in the middle between the rear axle and the front crank. Measure from the same spot each time.
Make equal adjustments on both sides.
Hope this helps.
 

DavidD

New Member
Region
USA
Some adjustment tips.
A bike stand that will hold the bike off the ground is most helpful.
You need to turn the crank several rotations after each adjustment to get an accurate reading.
Try to take the measurement in the middle between the rear axle and the front crank. Measure from the same spot each time.
Make equal adjustments on both sides.
Hope this helps.
Thanks much! I would assume this could also be accomplished flipping the bike over onto the seat and bars.
 

DavidD

New Member
Region
USA
Some adjustment tips.
A bike stand that will hold the bike off the ground is most helpful.
You need to turn the crank several rotations after each adjustment to get an accurate reading.
Try to take the measurement in the middle between the rear axle and the front crank. Measure from the same spot each time.
Make equal adjustments on both sides.
Hope this helps.
Got my tension tool. Adjusted to 45lbs. Here's a video of the clicking I get in the belt drive when tension is around this high. It's really more of a knocking. Can't really pin down what's causing it.
 

Ute4492

New Member
Got my tension tool. Adjusted to 45lbs. Here's a video of the clicking I get in the belt drive when tension is around this high. It's really more of a knocking. Can't really pin down what's causing it.
That's very odd. The belt set at 45lbs should not be a problem. The specs on the ride1up website say between 45 and 50.
Would definitely send the video to ride1up support. Perhaps they can diagnose the problem.
Sorry to hear about the issue you are having with your bike.
If you find what the problem is please post.
Good luck.
 

DavidD

New Member
Region
USA
That's very odd. The belt set at 45lbs should not be a problem. The specs on the ride1up website say between 45 and 50.
Would definitely send the video to ride1up support. Perhaps they can diagnose the problem.
Sorry to hear about the issue you are having with your bike.
If you find what the problem is please post.
Good luck.
I opened a ticket with their support earlier and already got a reply however I don't think he actually read my problem or watched the video unfortunately and just told me "sounds like the belt needs more tension" and sent me the article about adjusting the tension. I replied and explained the higher the tension the worse the knocking gets. I feel like the rear cog is possibly the culprit however I don't have a tool for taking that off. I'm pretty comfortable with doing all my bike work (I did a bbshd mid drive conversion last year and it's still great, just wanted the Roadster for more of an exercise oriented bike) but I've never worked on belt drives.
 

drewberz

Active Member
Can you disconnect the belt from chainring and cog, then try pedaling the crankset both directions and spin the wheel both directions? My thought is to identify the source of the sound first.
 

DavidD

New Member
Region
USA
Can you disconnect the belt from chainring and cog, then try pedaling the crankset both directions and spin the wheel both directions? My thought is to identify the source of the sound first.
Yep, I've got the wheel off now. Cranks have no noise. The rear cog doesn't really have the noise under zero tension either. I feel like the noise occurs around as little as 20-30lbs of tension.
 

drewberz

Active Member
Yep, I've got the wheel off now. Cranks have no noise. The rear cog doesn't really have the noise under zero tension either. I feel like the noise occurs around as little as 20-30lbs of tension.
I wonder if it's an alignment issue. Can you double check the tension screws and make sure they are equally screwed in?

Seems too premature for the belt to go bad, even if you are applying a lot of force. Also possible but unlikely it was a bad belt to begin with. Guessing you don't have a spare belt to try with and eliminate the belt as the issue?
 

DavidD

New Member
Region
USA
I wonder if it's an alignment issue. Can you double check the tension screws and make sure they are equally screwed in?

Seems too premature for the belt to go bad, even if you are applying a lot of force. Also possible but unlikely it was a bad belt to begin with. Guessing you don't have a spare belt to try with and eliminate the belt as the issue?
I've paid careful attention to make sure the wheel is equally spaced between the chain stays and have made equal adjustments on each side. Nothing comes close to rubbing either on the frame or my brake pads.

I don't have a spare belt, but since this appears to just be an automotive belt I could pick one up.