Greentime motor with non standard disc brakes

[Sr.Agaporni]

I recently bought a 35mn motor from Greentime. Wheb I received them I realized that their wholes for disk brake are not compatible with standard disk brakes. Any idea where to finde a compatible disk? Leo is none responding my answers about this problem as far as he has compatible disks. I also tried to "drill" a standar cheap 160mm disk to try to fit it in these holes but It seems as not possible without braking the disc.

 

[MadRhino]

Use a standard disc, one of the cheap discs that has enough metal around the mount to drill the matching pattern for your motor. Or else, you could drill the motor but it is easier and more convenient to drill the disc.

 

[Sr.Agaporni]

Use a standard disc, one of the cheap discs that has enough metal around the mount to drill the matching pattern for your motor. Or else, you could drill the motor but it is easier and more convenient to drill the disc.

Well, that is somehow a solution, but frock this, really annoying to have to do all that work to simple fit a disc, which should be standard.
The distance between holes is a few mm, so it sounds like I should try. Thanks for the idea.

 

[MadRhino]

Yep, but Chinese sometimes have their own standards. Even some screws that I have seen, that are neither metric or Imperial but right in between. I wonder if someone in a Chinese factory believed they would fit both.

 

[Sr.Agaporni]

Yep, but Chinese sometimes have their own standards. Even some screws that I have seen, that are neither metric or Imperial but right in between. I wonder if someone in a Chinese factory believed they would fit both.

 

[Ypedal]

if it's kinda close... a round file and some elbow grease will get you there..

I have a few rotors with the offset pattern, but would have to do digging deeeeeep...

 

[Drunkskunk]

A standard disk is 44mm from hole to opposite hole. But 48mm is also around. it was common on chinese spin-on adapters 10 years ago, and some scooters use it. Here's a 160mm one:
http://www.partsforscooters.com/110-45_BrakeRotor-CE49?sc=31&category=132328

 

[Sr.Agaporni]

A standard disk is 44mm from hole to opposite hole. But 48mm is also around. it was common on chinese spin-on adapters 10 years ago, and some scooters use it. Here's a 160mm one:
http://www.partsforscooters.com/110-45_BrakeRotor-CE49?sc=31&category=132328

I have been trying to find these disk in Europe to avoid the expensive shipping (more than 40$) but no way to find it...

 

[Sr.Agaporni]

Well, I must say I have been retarded trying to solve my problem. Instead of searching for a mini bike disc, searching for 44mm disc brakes on aliexpress or ebay gives me a lot of options, from 140mm to 203mm.
@Drunkskunk thank you very much for your help!

 

[John in CR]

Adapters exist, since I have one that came with some motor I bought years ago. They have one set of holes to match the standard bike disc, and another set of holes to bolt to your hubbie.

 

[Sr.Agaporni]

Adapters exist, since I have one that came with some motor I bought years ago. They have one set of holes to match the standard bike disc, and another set of holes to bolt to your hubbie.

Good to know, however, I got a 5€ 140mm disc with 44mm pitch from aliexpress, I hope it works, don't really need any special disc for this bike, just something that works.

 

[Lowberry]

OMG I've got a friend that bought a kit from ebay that had the disk brake pattern like that. the seller was lame and he had to drill the disk... it had a big fet youyangking controller that he over shunted, it's dead now it was a 50mm magnet with very little brake clearance on brake side

 

[Sr.Agaporni]

OMG I've got a friend that bought a kit from ebay that had the disk brake pattern like that. the seller was lame and he had to drill the disk... it had a big fet youyangking controller that he over shunted, it's dead now it was a 50mm magnet with very little brake clearance on brake side

Well, it seems that 44mm pitch is very common in China, but inexistent out of there. The problems which comes with big motors (50mm magnets) are common when trying to fit them in a standard bike, maybe trying a EEB, Vector or similar frame would help your friend to avoid that part of the building process, which can be a real pain.