April 9, 201511 yr Anyone have any ideas, how to improve standard ty brakes. for 81 250 majesty. Have a spare set of hubs to play with. cheers in advance.
April 10, 201511 yr The way to get the best performance out of any drum brake is to get thick linings made & have them turned to the same size as the hub. You need to space the shoes out at the cam by the same amount, 1mm is good, then mount the backplate in a lathe & take light cuts until you get to the required size. When refitted to the wheel minus the spacers you will have full contact over the whole lining length & only a small amount of movement before the brake starts working
April 10, 201511 yr Hi Guy's. Jon that is a "Pit Bike" "rear" hub, and they do work very well indeed, and all for £30, then to drill holes in it like that, proves how good most Chinese stuff really is now-a-days. I stick with TY's personally, but I have got some of these for later. Regards Charlie. PS skim the linings. like the sensible answer.
April 11, 201511 yr Hi Guy's. Jon that is a "Pit Bike" "rear" hub, and they do work very well indeed, and all for £30, then to drill holes in it like that, proves how good most Chinese stuff really is now-a-days. I stick with TY's personally, but I have got some of these for later. Regards Charlie. PS skim the linings. like the sensible answer. I knew someone would notice ! I cropped the pic of one of Jon Bliss's Cubs. Ben Wilmore told me how good they are when drilled like that,he reckons to drag the brake for a few yards after a stream section and they are back to normal.
April 11, 201511 yr I knew someone would notice ! I cropped the pic of one of Jon Bliss's Cubs. Ben Wilmore told me how good they are when drilled like that,he reckons to drag the brake for a few yards after a stream section and they are back to normal. I thought this was a joke until jon v8's second post
April 11, 201511 yr Anyone have any ideas, how to improve standard ty brakes. for 81 250 majesty. Have a spare set of hubs to play with. cheers in advance. switch it over to hydraulic disc............ I hate drum brakes............ OK mr grumpy pants will go away now...........
April 12, 201511 yr I thought this was a joke until jon v8's second post No joke,and Bens father Martin was out today on his Cotswold BSA with drilled rear hub, couldn't see if the front was as well,just noticed the rear.
April 13, 201511 yr I rode Bens bike for a short time a couple of weeks ago. The brakes felt totally normal for a drum, powerful and progressive. Although I did not try filled with water and mud, which were prevelant during the actual trial. Ben won the expert class so I guess they must have been OK!
April 13, 201511 yr Ty brakes are good anyway,they work perfect with original EBC brakeshoes.Do not buy cheap no name stuff from ebay,you pay twice.
April 13, 201511 yr Author The way to get the best performance out of any drum brake is to get thick linings made and have them turned to the same size as the hub. You need to space the shoes out at the cam by the same amount, 1mm is good, then mount the backplate in a lathe and take light cuts until you get to the required size. When refitted to the wheel minus the spacers you will have full contact over the whole lining length and only a small amount of movement before the brake starts working What kind of tool do you use on the lathe?
April 13, 201511 yr What rpm for a good finish? I think I used something like 50-60 RPM and a tool steel tool I used a tool shaped for machining steel and it worked fine The brake material dust is probably abrasive (clean the lathe well) I mount the backing plate on a mandrel I also suggest that the drum surface should be machined smooth first
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