motobecane doppler ER2 pulley
motobecane doppler ER2 pulley



DOPPLER ER2 pulley for motobecane mopeds

slides on to 16mm pedal shafts. width of mounting area = 36.5mm

use two of these 18mm long pulley bearings for ze ultimate needle bearing upgrade.

our aftermarket motobecane sprockets DO NOT fit on this pulley but the peugeot sprockets do! comes with a 11 tooth front sprocket score!!!

sprocket mounting OD = 28mm
total diameter = 214mm

taco rating taco rating 3 of 5 3 of 5 Total Reviews: 6 give your taco rating here

  0 taco eaters like this review
3 of 5 Does the job but ya gotta prep it. April 21, 2019
taco eater : Jon Feldman from Portland , OR United States  
1. Stock bearings are bobo as fuck. Don't run em. Buy the upgrade bearings. Remove the old bearings by torching the pulley and then knocking the bearings all the way through and out ( with a appropriate size socket ). Install the new ones the same way. Make note that there is NOT a lip or edge on the inside that the bearings bottom on, this means you just tap em till they're about flush then call it a day.

2. Loctite errythang.

3. After a couple rides I noticed a shit load of clunking. Upon inspection I found that the Allen bolt it comes with was clunking back n forth inbetween the notch in the sprocket. Essentially the Allen bolt doesn't fit snugly in the sprocket notch. I replaced the Allen bolt with a normal m6 bolt. Now it fits correctly and doesn't clunk around. Additionally I added a normal m6 nut on the other side to eliminate any potential chances of it backing out.

Was this review helpful to you?

  1 taco eaters like this review
2 of 5 Qualidade questionável. January 6, 2016
taco eater : Carlos from Brazil  
Achei que a qualidade seria melhor. A fixação do pinhão não é boa gerando folga. Mesmo lubrificando com frequência, o rolamento não aguentou e quebrou.
Quanto ao alinhamento da polia, é muito bom e não vibra.

Was this review helpful to you?

  0 taco eaters like this review
3 of 5 Awesome with some prep! May 29, 2012
taco eater : Rachel from Philthydelphia, PA  
Shiny pulley! Definitely preferable over the stock pulley BUT MAKE SURE YOU TIGHTEN THE BOLTS HOLDING THE SPROCKET DOWN BEFORE YOU INSTALL IT. Disengaging while riding = not fun.

Was this review helpful to you?

  0 taco eaters like this review
5 of 5 mounts, spins April 30, 2012
taco eater : Aaron Fowler from Richmond, VA United States  
mine was pre-greased and had sprocket mounted.... 0.o was it suppse to!?

i'll update after i put a couple 100 miles on it.

Was this review helpful to you?

  1 taco eaters like this review
1 of 5 stock is better August 22, 2010
taco eater : Jessegar from ft. Myers, FL United States  
Sorry, I didn't like this product. ended up going back to stock pulley. bearings seemed loose and it wobbled.

Was this review helpful to you?

View All Customer Reviews