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66cc 80cc 2 Stroke Engine Motorized Bicycle
1xGear 1xPush Bike Gear 1xClutch Shaft
Sandy S.
Reviewed in the United States on January 11, 2025
He used ir
@MikeNBikes
Reviewed in the United States on February 15, 2024
Just to be clear, this is a 2.5mm keyway. The clutch assembly (clutch shaft) and drive sprocket are for a 2.5mm keyway. Your clutch assembly will be either 2.5mm or 3.0mm. Your crank uses a 2.5mm key, so confirm the size.I got to say, the quality is actually REALLY good. The drive sprocket is a different material than normal (in a good way) and the clutch assembly is better than the listing I have been using for the last year. The keyways were machined absolutely perfect to where the key doesn't slide out if you remove or install the basket or sprocket. It also has the overhang at the top of the keyway to ensure the key is secured. I'm telling you, if you're doing a bottom end re-build, this is the listing to go with.
Axel
Reviewed in the United States on November 30, 2024
I don't know what 66/80cc motors still use a 2.5mm key.This must be used together as a set. I needed the drive sprocket and had to file it out to fit the 3mm key all my motors use. Same for the bevel gear its 2.5mm as well.So they don't give you the keys with it either.To use this shaft I will have to buy a cutter an re-cut the key.I had the same issue with a clutch I bought. Had to file that out too.Better off buying a complete motor only and use for parts. Eventually you will need most of the parts and they will fit.I think they sell these after market parts from old 49cc motors.
Gaffman20
Reviewed in the United States on August 1, 2023
Part was what i needed. Works fine..
D-Dre
Reviewed in the United States on March 28, 2023
The media could not be loaded.
Odeimy Millán Rey
Reviewed in the United States on November 17, 2023
No me gustó que el transportista lo dejara en el buzón, a pesar de especificar que lo dejara en la puerta
Jayse
Reviewed in the United States on February 16, 2021
**Update** on second glance it's just the collar on the drive train side that is milled crooked on one side, not due to an uneven spring so it shouldn't affect performance. However I still took the collars and spring off and sanded the spring for good measure.Definitely usable but the spring is not ground down enough to allow for an even seal on the nuts that hold the spring in place.To be fair most motorized bikes have this same problem with the clutch and makes for uneven gripping of the clutch pads and can actually slip off fter many hours of use making the engine virtually unusable until the clutch shaft is rebuilt. It's very slight and unnoticable until you roll the clutch shaft on an even surface and see that one side of the holding nut is raised a little more than the other side.
GB
Reviewed in Canada on July 28, 2020
Received what I wanted before the scheduled delivery date.
Timothy Myers
Reviewed in the United States on October 22, 2019
Needs to come with bearings as it is typical to repkace those when doing the shaft, sprocket, and gear. I have not installed yet
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