Chalo wrote:Find you how much clearance you need on the back side of the brake caliper. Also note that the disc adapter you found will move your brake rotor outwards by the amount of its thickness. Your brake might or might not have enough adjustment to accommodate.
Hugh-Jassman wrote:thanks... you had to make ab adapter for the brake also?
but has no one made one to just buy?
I found this adapter with Aluminum sprockets.
http://www.kingssalesandservice.com/top ... t-adaptor/
Why do these people use aluminum for their candy colored sprockets?
Don’t they realize that even aerospace aluminum if wimpy compared to aerospace steel? And for a motor they can’t possibly last long.
standard 150mm 12mm hub, cut up an old disc to get the adaptor. No wider than standard, though i had to mod the caliper adaptor to fit it all in.Hugh-Jassman wrote:How much wider is the adapter; what axle width? And do I need to spread the forks a bit?
It looks like it may need a special hub....??
boisrondevens wrote:I love the idea of have the adapter on the left side but my problem is grease. I don't even like to touch my disc brake with my hangs by fear of putting grease on them. I can imagine the greasy chain splashing grease on them. Very clever idea but not practical for that aspect. My two cents
yea i trialed it ona old set of pads, thinking that id have the same issue. been fine thus far, atleat 500km of riding. there;s a good 20mm seperating the sprocket and teh disk.boisrondevens wrote:I love the idea of have the adapter on the left side but my problem is grease. I don't even like to touch my disc brake with my hangs by fear of putting grease on them. I can imagine the greasy chain splashing grease on them. Very clever idea but not practical for that aspect. My two cents
Hugh-Jassman wrote:I really like this one. Does anyone know why it may not work?
like where can I get large sprockets for it? I need to do a 9:1 reduction so maybe a 144 tooth?
Looks like I will need a longer axle, about 1/4 inch?
http://www.bicycledesigner.com/rotor-an ... apter.html
neptronix wrote:Thanks for the link! the picture of the black sprocket adapter was one i was selling. I'd commit a felony to get my hands on another one, but i'm sure i bought one of the last ones
The king's sales and service adapter is trash.. tried one.. threw it away.
That clamshell adapter mentioned earlier also only works on some bizarre single speed hubs.
The bicycle designer one you mentioned looks like the only legit option for now, and is worth a try.
I dont always agree with everything you say, but I agree with you here.Chalo wrote:Given that the rear brake can only provide about 25 percent of maximum braking, why not just use a rim brake and have the rotor mount freely available for a sprocket? Trying to stack both of them on the same mount introduces spacing and contamination issues that will make a disc brake less effective than a rim brake anyway.
If the frame isn't equipped with brake bosses, a brake plate that has them is a simpler and easier machining project than a sprocket carrier for the rotor mount.