13+ Lightened Rear Rotor - Triumph675.Net Forums
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post #1 of 23 Old 11-03-16, 12:49 Thread Starter
MGFChapin
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13+ Lightened Rear Rotor

A few years ago I had a shop in Georgia machine over a pound out of the OEM rear rotor from my SV650. It came out looking like this:


That shop's owner recently retired, so now that I'm trying to drop some weight off my Daytona, I'm talking to a few places local to me about doing the same thing. It'd be a lot cheaper if I give them a batch of rotors so I'm gauging interest; you can ship me your rotor(s) and I'll return them when they're done. The hole pattern looks the same on all years but I know the offset on third gen is different, so I'm limiting it to those for now since I'll need to provide a CAD drawing.

A 1-pound loss of unsprung, rotating weight is a huge performance boost. Obviously there's less rotor surface area so braking power is slightly affected, but I was still able to lock up the rear if I needed to. It's fine for track riding, but probably not a great idea if you're doing a lot of 2-up. ABS function will be unaffected. Sound appealing to anyone?
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post #2 of 23 Old 11-03-16, 15:00
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any idea on price? (you can PM if needed). If its not insane I would absolutely be in.
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post #3 of 23 Old 11-03-16, 15:03 Thread Starter
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I paid $89 for my SV rotor, hoping to get this in the same ballpark but it depends a lot on quantity.
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post #4 of 23 Old 11-03-16, 15:09
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Im down. I have two rotors, depending on timing I could have both done but if it runs to close to race season I would only send one.
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post #5 of 23 Old 11-07-16, 14:01 Thread Starter
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Local machine shop fell through. Trying something different with an engineering friend, may be around the same cost but we'll see. Worst case scenario, I wait until Spring when a bike shop in Oregon starts offering this service in-house.
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post #6 of 23 Old 11-07-16, 19:00
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What about this one from Triumph Race Support?

https://www.facebook.com/TriumphRace...type=3&theater

2015 Daytona 675R
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post #7 of 23 Old 11-07-16, 23:28 Thread Starter
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Quote:
Originally Posted by torana9x View Post
What about this one from Triumph Race Support?

https://www.facebook.com/TriumphRace...type=3&theater
Interesting, I haven't heard of that one. Most of the other aftermarket rotors are for improved braking performance, which obviously I'm not looking for. I'll have to see what sort of weight savings the TRS one provides.
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post #8 of 23 Old 11-09-16, 21:08
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Quote:
Originally Posted by MGFChapin View Post
Interesting, I haven't heard of that one. Most of the other aftermarket rotors are for improved braking performance, which obviously I'm not looking for. I'll have to see what sort of weight savings the TRS one provides.
Let us know how you go. I'd be interested in the weight difference.

2015 Daytona 675R
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post #9 of 23 Old 11-09-16, 21:59 Thread Starter
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Quote:
Originally Posted by torana9x View Post
Let us know how you go. I'd be interested in the weight difference.
Si says he only has them for 06-12 until further confirmation that rear rotors are interchangeable. I'll have to ask some local friends for a test-fit.
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post #10 of 23 Old 01-11-17, 15:17 Thread Starter
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Finally an update to this. The guy that did my SV's rotor has a son, Skip, who's still working the waterjet. Haven't gotten it back to weigh the difference, but it looks great and only costs $75 + freight. Shoot him an email at schance AT macswaterjet DOT com


Last edited by MGFChapin; 01-11-17 at 19:24.
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