Bearing question for Curvy

[yorkie_chris]

SRAD definite, curvy can't remember

All stems are hollow, gsxr stems are aluminum and have smaller hole through it.
Curvy (and pointy) stems are steel and have bigger hole.

[Bibio]

Originally Posted by Wideboy

tapped and machined a bolt on the bottom then pressed it in its very neat

i might be wrong but i think you may have 'tapered' the bottom lip from the stem when you removed it from the lower yoke. this is why you think it does not look like the one in the picture that zadar has posted. i may be wrong but if i am right how did you get the extra 'depth' on the bottom of the yoke to fit your 'capping nut' that you have manufactured as in the picture above?

you also state (as someone has mentioned) you 'froze the yoke and heated the stem'. the tolerances are very close but not quite right so pulling the stem further up the yoke orifice would in fact give a supposed 'tight' fit.

only asking as i have had a look at curvy stems and they are hollow and your has a cap on it. it may be that the cap you have fitted is holding the stem in place.

i'm not in any way saying that you have not done what you have done, but if you have done it then it might be dangerous and i am only concerned for your safety mate. i quite like your posts and would like to continue to like them.

Bibio,
Take look at yoke bottom, you can see step in there. Stock stem has circlip around at end that bottoms against that step. That determines how deep you can press it in. I think he was pushing it out that way and snapped circlip off. He installed nut there which is probably acting as stop. Problem is that is only place stem is touching yoke.


I am showing sv yoke but gsxr is same way.

[Wideboy]

sorry my battery went flat

right here is the storey for a to z.......

i bought a complete gsxr front end off of another sv....... i believe the yokes to be of 98 srad 750 with k3 USD forks........ i had the bearings but forgot to pull the races out of the other frame so i needed to buy a new ones, i thought 50 quid for a bearing and race from America was a bit OTT so after thinking i thought about swapping the stems, this i have done using my old standard sv bearings. I snapped the bottom "lipped" part off my sv stem because i was pushing it the wrong way as i didnt know about the "lip", after 7 tons of force it broke and came out. To make up the length on the sv stem back to what it should be i levelled off the breaking point and put a bolt to go onto the bottom (which can be seen). I put said stem into the srad bottom yoke which required between 4 - 5 tons of pressure and it was pinned for extra measure. This was all done last week and since Wednesday the yoke has been sat in the frame with bearings ect waiting to receive the fork and top yoke which i put on this evening

like i said if i comes off and im still here i will eat my hat but its solid as **** and i have every confidence in what has been done...... i know im abit of a tw@ but honestly, after the injury's I've suffered this year, do you think i would honestly ride a bike that i thought was going to collapse on me