Chaharly Posted February 3, 2012 Share #1 Posted February 3, 2012 I have access to a brake lathe. Is there a resurfacing spec to redo the calipers? Link to comment Share on other sites More sharing options...
dingy Posted February 3, 2012 Share #2 Posted February 3, 2012 Yes there is. Trash them. You will find turning a motorcycle rotor is far different than turning a car rotor, these will not surface cut well due to hardness of material. On a car rotor, there is extra stock to allow some clean up. A MC rotor is in some cases only 5mm thick, which is .196" for us yankees. There is no extra stock on these to turn down. Your 83 are probably 8mm thick in stock condition, which is .314". I seem to remember they are cored on the inside for air cooling which makes turning them that much more difficult. Gary Link to comment Share on other sites More sharing options...
Flyinfool Posted February 3, 2012 Share #3 Posted February 3, 2012 :sign yeah that::sign yeah that: And if you did want to clean then up, I don't think turning would be the answer, you would probably want to grind them. But as thin as they are to begin with, just get new ones to be safe. Going is optional, stopping is not. Link to comment Share on other sites More sharing options...
Chaharly Posted February 3, 2012 Author Share #4 Posted February 3, 2012 They went several hundred dollars for them online. Does anyone know where i can get some cheap? Link to comment Share on other sites More sharing options...
jasonm. Posted February 3, 2012 Share #5 Posted February 3, 2012 EBC makes rotors for the 1st gen Venture. I believe well under $200 ea. They are not stainless like the OEM but do stop my bike just fine. Link to comment Share on other sites More sharing options...
twigg Posted February 3, 2012 Share #6 Posted February 3, 2012 They went several hundred dollars for them online. Does anyone know where i can get some cheap? Good secondhand rotors will be perfectly fine if they are not worn thin and do not have deep scoring. Minor surface marks are acceptable. Expect to pay up to $50 per rotor for good ones. The pads are equally important and rarely cheap, so choose carefully. There are many brake upgrades that will all help. You can de-link the Front/Rear system ... Swap out the rubber lines for braided steel and even change the calipers for those from a 98-04 Yamaha R1 ... that will give you a wider choice of pads too. The standard brakes work ... They stop the bike. But they are marginal and improvements here are worth vastly more than any number of shiny bits. You will probably only ever need one decent set of rotors, and it might be worth shelling out the new ones, and yes, the makers are very proud of them!! Link to comment Share on other sites More sharing options...
Venturous Randy Posted February 3, 2012 Share #7 Posted February 3, 2012 If your rotors just show the usual score marks, I would just replace the pads with EBC HH and let it go. they will break in and you will be fine. All this is if they are not too thin at this point or bent. Ran dyA Link to comment Share on other sites More sharing options...
Oldseadog Posted February 3, 2012 Share #8 Posted February 3, 2012 Check this link http://www.oldbikebarn.com $147.95 for the fronts, MD2081LS & MD2081RS, and $165.95 for the rear MD2081. These are EBC rotors. Cheers Bill Link to comment Share on other sites More sharing options...
Pegasus1300 Posted February 6, 2012 Share #9 Posted February 6, 2012 EBC Galfers and BraKing all make replacement rotors for the 1st gen for under $200.00 The minimum thickness is .26". It is normal for the early 1st gen to groove and look bad but as long as they are over the minimum thickness they are alright. Link to comment Share on other sites More sharing options...
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