 You don't need to be an 'investor' to invest in Singletrack: 6 days left: 95% of target - Find out more
Hi all,
I have killed my rear wheel, and my replacement for one more ride of October is a cheap concept wheel with a shimano rotor which is much too small for my magura mt4s. However it is riveted in place so i cannot fix my magura rotor to it. I need to ride it only once. How damaging is this?
Thanks
Depending on how much contact there is, it might be OK.
It will be a centrelock rotor which comes off by unscrewing a retaining ring like a cassette and uses the same tool as cassette removal. Just buy the right size centrelock rotor and use that.
wot tj said.
Or if you don't want to use centrelock rotors, buy an adaptor which you attach in the same way but then bolt a normal 6-bolt rotor to it.
my replacement for one more ride..... I need to ride it only once
I get the impression he is asking if he can ride what he has for 1 ride without spending money.
well, if it's a 160mm rotor and the brake is current;y running 180 it might be easiest just to remove the adapter holding the caliper to the frame and drop the rotor size needed?
Magura's are 180mm not 185 so shouldn't be a 5mm difference, more like 160 v 180?
Yeah.
if possible
a shimano rotor which is much too small for my magura mt4s.
If the pads aren't contacting the rotor, you won't have any rear brakes and there's a danger that the pistons will pop out if you accidentally grab the brakes. I wouldn't try any serious riding without both brakes working. If the pads are partially contacting the rotor, you should still have brakes, but I wouldn't try any serious riding unless most of the pad is contacting the rotor. This will cause the pads to wear with a step in them, so you may need to bin them when you get a new wheel.
What size is your old rotor? What mount does the brake have? Is it directly mounted to the frame or is there and adapter between the frame and caliper? If you are lucky, it might just require removing an adapter. Otherwise, you might just need to fit a smaller adapter.
It is 180 vs 160...
There is an adapter between the frame and the caliper.
Will the caliper mount to the frame without the adapter? If so, try that. If not, you should be able to buy an adapter that will let you use the smaller rotor.
Remove the adapter! 🙂
There is an adapter between the frame and the caliper.
just remove that and realign the caliper. Make sure the bolts don't bottom out in the frame before you really start trying to tighten them.
Thanks all
yea The caliper fits to adapter and is made for 160!
Thanks all for your time!
Wait that only took 45 seconds to try out? That was fast 🙂
🙂