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Hey guys, doing some more cleaning of the shop and we found (2) 34mm Upper triples. We haven't made these in a few years in the 34mm size. The stem diameter didn't change after 70, so im pretty sure these will work for 71-73. Riser Bushings are included. $80 plus actual shipping. We can...

All billet construction with stainless hardware included. $100. 2-3 sets available. PM if interested.

Hello again, Kris here from OSS. Our website had been down for quite some time this past year, but we are back at it. We have made some significant mods to our XS650 Rearsets, and Mid controls, and added a 3D printer to our shop. making prototyping new stuff a bit easier..... Check Us out @...

Just as it says. I have looked briefly through the topics section and not gotten a solid answer. I want to design some adapter plates to bolt good late model rotors to XS forks. I know most of them are 5mm. I have a good assortment of calipers, but none of them will open up to these Fat...

Issue ( 1 ) MY kickstarter wont return all the way. IM pretty sure this is just a spring issue in the clutch side. Issue ( 2 ) I was changing the shifter on my 1980, and i pushed the shift shaft pretty far in. There was already lots of play, and now, it feels disengaged. Do i need to split...

I am making a new batch of Billet triples this week. 10 35mm cafe style, and 5 34mm cafe style. NO OEM with Holes......This time. I am redesigning that product, and incorporating my own Risers and riser bushing system. Should be ready in about 3 weeks... That will be for 34 and 35mm setups...

Here is my design for a Billet triple clamp. I started this about 6 months ago, and it got lost in the shuffle, of rearsets, and other billet goodies. I know Others are making a fine product, similar to this. I have 4 cafe style ready to ship, and 1 OE style. With Bar m ount Provisioons that...

Is there anybody out there that fabs up a rear frame hoop for 650's? Im doin a cafe build, and im not that handy with fab stuff. I just want a basic "U" shape that i can weld behind the shock mounts. Kris

Hello, my name is Kris, and I have a problem....sort of.... At one time, (for a couple months anyway) I had a Single Cylinder, a Twin, a Triple, and a Four cylinder. While each one, was of the big four japanese manufacturers. All the while, still making room for my wifes Seca ll, and my sons...

IM running a Katana rear wheel and suspension on my Cafe project. Stock gearing for XS is 17-34, if i recall. Stock Katana is 15-47. And the smallest rear sprocket for a Katana i can find is 42, which is way too big for what i want, and I cant find any other size for 650's but 17t. does anyone...

At first, I wanted to do a unique cafe build, in which i could stil ride 2 up, and still have the distinct cafe feel. With a Thruxton style cowl, covering a rear seat. After messing with different ideas, and options, i ditched that plan. So now im going full on Cafe'. The works!! No more messing...

Tonup phil....Good guy. Easy communication. Sold him a set of rear sets! Hope he likes them. Thanks Phil. Kris R.

Well I have finished the design, and already sold a couple sets to members here on the board. I think they came out great. These will mount to stock foot peg studs from 70-83's. in 74 Yamaha made some frame changes, and moved the studs apart by 5mm. I have separate mounts for 70-73's. and 74-83...

Im making rear sets for my 72 XS1B cafe project. My mounts fit fine on my frame, using the stock foot peg mount studs. I took them to my father-in-laws, to try on his 76, and they dont fit. The center to center distance of off by about .150. (4mm). I know they made frame changes through the...

Hey guys. Im a CNC machinist at a shop here near Lansing Mi. Ive been doing it for about 15 years now. I have made everything from rear sets to forward controls, and most in between, for a few custom bikes. I want to make a new Billet triple clamp for XS650's. I want to get some preliminary...

Whats the formula for figureing out the CC's of an engine, with the bore and stroke? And number of cylinders obviously. Thanks , Kris

Was there a change in the width at the top of the frame rails after 73-74 ish? I bought a cafe seat pan and a good pic from the seller shows it on the PO's 650, but ot wont even come close to fitting on my 72:wtf:' frame. Its way too narrow at the front. The seat has a constant angle to the...

I picked this roller up from Mid-Ohio this last July. Serial number shows its a 72 MY. But I have never seen the Bevels like this on a 650 tank. All ive seen, have been rounded down the length of the tank. It has the early non-locking aluminum gas cap, and had the turn signal mounts that are...

Ive been into 650's for a couple years now, and have built a real nice bobber for a friend, now its my turn to build one for me. Cafe style. Im a CNC machinist and programmer by trade, so I can offer lots of advice in that area if needed. I hope to gain plenty of info,and share some as well. thanks.