Search found 754 matches

by mattcfish
Fri Nov 18, 2016 3:48 pm
Forum: Post 1970 Airheads
Topic: Oshmo billet vs. stainless steel top clamp
Replies: 5
Views: 2742

Re: Oshmo billet vs. stainless steel top clamp

A plug for Oshmo. They do great work and have quality products. They are the only ones I can find that have a u joint that is quality enough to be used on our bikes. The rest are using wimpy steering joints. If you ask, they will sell you just the joint, they will also do the replacement for you for...
by mattcfish
Thu Nov 17, 2016 12:41 pm
Forum: Post 1970 Airheads
Topic: Can I use R100 rear drive on my R90S?
Replies: 5
Views: 2906

Re: Can I use R100 rear drive on my R90S?

I have a 32/11 on my R90. No mods necessary. Better MPG and the original speedo, which had been 10mph off with the stock gear was much closure (at freeway speed) with the taller gears. Only drawback is that in the twisties there are times when 3rd is too high and 2nd seems too low.
by mattcfish
Tue Nov 01, 2016 1:09 pm
Forum: Post 1970 Airheads
Topic: Big Brakes on Airheads
Replies: 14
Views: 5230

Re: Big Brakes on Airheads

https://www.facebook.com/groups/1114082135373983/permalink/1132863446829185/ I have confirmation from one builder now that the stock under tank MC works with at least one 4 pot Caliper! "Hi all, After replacing the brake pads that came with my Ebay purchased R6 caliper (they were brake fluid/gr...
by mattcfish
Mon Oct 31, 2016 1:38 pm
Forum: Post 1970 Airheads
Topic: Airbox conversion / elimination
Replies: 1
Views: 1310

Re: Airbox conversion / elimination

http://i1377.photobucket.com/albums/ah68/mattcshark/Mobile%20Uploads/IMG_4350_zpszky0cb87.jpg Many will disagree, but I've been running open K&N filters on this bike since 1990. No damage what so ever to the cylinders. Even when I had the original 900cc cast iron barrels, they always looked goo...
by mattcfish
Wed Oct 26, 2016 6:23 pm
Forum: Post 1970 Airheads
Topic: Big Brakes on Airheads
Replies: 14
Views: 5230

Re: Big Brakes on Airheads

I guess I'm one of the old school guys who doesn't see any issue with the older ATE setup. At least on my '74 R90s, if properly adjusted, provide plenty of stopping power. I still have the stock rotors but added stainless steel braided linesand EBC pads years ago. (the Ferodo's never did work for m...
by mattcfish
Mon Oct 24, 2016 6:25 pm
Forum: Post 1970 Airheads
Topic: Big Brakes on Airheads
Replies: 14
Views: 5230

Re: Big Brakes on Airheads

Heavy Duty springs with 7wt fork oil. No bottoming issues. The thing is, the brakes are there when you need them. Once you get used to not having to be ham fisted with them they are easy to use. What master did you use? 2006 GSXR1000 RADIAL NISSIN MASTER CYLINDER (19mm piston). 2011 YAMAHA R6 SUMIT...
by mattcfish
Sun Oct 23, 2016 11:27 pm
Forum: Post 1970 Airheads
Topic: Big Brakes on Airheads
Replies: 14
Views: 5230

Re: Big Brakes on Airheads

Heavy Duty springs with 7wt fork oil. No bottoming issues. The thing is, the brakes are there when you need them. Once you get used to not having to be ham fisted with them they are easy to use.
by mattcfish
Fri Oct 21, 2016 6:02 pm
Forum: Post 1970 Airheads
Topic: Big Brakes on Airheads
Replies: 14
Views: 5230

Re: Big Brakes on Airheads

Yep. Nice brakes are, really, all these old reliable machines need. I don't know how I survived this long without them.
by mattcfish
Mon Oct 17, 2016 6:07 pm
Forum: Post 1970 Airheads
Topic: Big Brakes on Airheads
Replies: 14
Views: 5230

Big Brakes on Airheads

I've created some adapters that, with some modification, allow you to mount 320 and 330mm Ducati rotors and modern Japanese style 4 piston radial calipers on your ATE equiped airhead. I would be interested in hearing your thoughts on this forum. If anyone is interested, check out my new Facebook Pag...
by mattcfish
Fri Sep 30, 2016 1:34 pm
Forum: Post 1970 Airheads
Topic: Clip on mounted master cylinder
Replies: 5
Views: 2205

Re: Clip on mounted master cylinder

email me at
r90xdesigns@earthlink.net
if you are interested.