taco eater :
Country boy from Princeton, MA United States
This belt is no good it to wide for us French guys.
It actually made a nice scratch line in the er3 var ( don’t they make the er3)?
I would say it’s good to keep as a spare if your brake.
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1 taco eaters like this review
OK OK OK
August 19, 2016
taco eater :
the Earls clan from CT
So this belt on your doppler vari setup is like 1mm toooo wide. super grippy for starting your bike but it does not sit all the way down in the variator making it a leeettle short and causing you to lose some takeoff. The gates toothed belt is, of course, 1mm too small so it slips when starting your bike unless you push on the launch lever and it slips a little when you rip. SO you hafta take apart you variator (haaaha) and insert a 1mm washer inbetween the blue variator top and the shaft to get your doppler belt to fit perfecto!
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2 taco eaters like this review
If you have a kickstart ER3, really consider this.
December 19, 2012
taco eater :
Adam Pereira from castro valley, CA United States
After trying a couple different belts, ya know the normal ones, ax30, 17320, 17321...blah blah blah, this belt is the ONE. Best fit to the vario at idle and full closure at variation. This belt is just super grippy and not being eaten by the pulley AT ALL. Give it a shot..Super happy I did.
Nono it’s no good 
OK OK OK