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R90/6 Brake job
Posted: Sun Jun 20, 2021 2:40 pm
by redavide
Under what conditions should a brake disc be replaced (R90/6)? They're kind of pricey (dual discs on my r90/6) -- about $300/each and I don't want to buy new ones if it's not necessary.
Also, after removing the calipers the rubber seals obviously need to be replaced. The replacement kits I found include a new piston, but my pistons look fine. Anyone know where to buy just the rubber seals??
Thanks!
Re: R90/6 Brake job
Posted: Sun Jun 20, 2021 2:59 pm
by Heizer
I got mine from boxer2valve.com but other companies sell them as well. They may not show on their websites.
Re: R90/6 Brake job
Posted: Sun Jun 20, 2021 3:12 pm
by redavide
Found rubber seals on boxer2valve.com
Thanks.
Re: R90/6 Brake job
Posted: Sun Jun 20, 2021 4:19 pm
by schrader7032
I think I found individual caliper parts for my /7 from Ted Porter in California.
Re: R90/6 Brake job
Posted: Mon Jun 21, 2021 2:46 pm
by redavide
Any opinions on when replacing brake discs is necessary?
Re: R90/6 Brake job
Posted: Mon Jun 21, 2021 4:39 pm
by schrader7032
I believe the disks have a minimum thickness stamped into the inner edge somewhere. Also, if the disk is grooved where the pad has been running in it, that would indicate uneven or bad wear.
Re: R90/6 Brake job
Posted: Tue Jun 22, 2021 6:11 pm
by srankin
LOL, remember to measure the disc thickness in one of the groves if any. Also look for any cracks around the mounting bolts. St.