I have 3 bikes with 29,4mm post: Yo, Verlicchi DH and Batavus. Today took delivery of two Kalloy SP 248 in silver and black for the Batavus. I do like the SP 248. It is period correct, 400mm long, but probably not fancy enough for a Yo.
The pads are glued into the holder. The idea was that when worn you send them back to WTB and they glue new pads in. I doubt whether they still offer the service. Living in Europe I decided to simply buy regular koolstop pads.
It is a frameset with a selection of non original parts.
In Holland it was common that Koga-Miyata sold left over new old stock frames at some point to bikeshops. Some shops specced the frames with parts and moved them on and other frames were sold customers who specced their frame with what...
For me it is the small conical one that works and the cylindrical did not, but my stem uses an aditional metal plate I see not fitted to your stem.
As devoted rigid bike rider I am not the biggest fan of suspension, but I am impressed by the affordability of this system.
Nice. That are the old elastomers?
Btw a while ago I bought a Pinerello with suspension stem that looks similar to the Flexstem, but with a steel spring instead of elastomer. I will post a pic soon.
I have tried the stem with the new elastomer on a bike. It is a skateboard truck bushing with durometer/hardness 92 'medium hard'. When I put my full weight on the bar not much is happening. I think I can use a bushing softer than 92.
Had the same with my Yo. Changed the Moby for a Heylight post and the Twister for a XTR QR and the issue was solved. Sliding saddles and posts are a common issue for me.
The Pro-Flex 752 uses 3 elastomers in the rear triangle. Dimensions for each elastomer:
Height 16mm
Diameter outside 32mm
Diameter inside 13mm
The elastomers in my frame have seen better days.
I have removed the tail. I now know that the large center bolt has to be tightened to lock the bits and arm in place. The two smaller bots have to allow some movement of the swingarm.