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Swing arm is from a 2002-ish Marin with the TALA system. Should be a direct fit to a JW2 or PRST-1. 29” in a PRST frame would take some engineering though, 27.5” barely fits! Definitely confused by that front end, Whyte plus fours with telescoping legs? The mechanical origami that defines the...

Re: Need Weird Whyte JW/PRST buying advice VICTIM FOUND!!!!!!!! Interesting thread... I’ve had 3 PRST-4’s, 2 19”s and a 21”. I bought the first 19” to ride, the 2nd 19” just in case I needed spares for the first one, and the 21” because I’m 6’3” and not exactly waif like. A couple of things...

Re: Asking 4 years after the original post is probably a little optimistic, but if you don’t ask you don’t get, right? Sadly, these forks went long ago, so I’m afraid I can’t help you. Sorry!

A whole £? I had no idea it was worth so little. :lol: As I say though, it’s my wife’s bike, and although she doesn’t use it she’s a sentimental soul. That said, if it were to go I could regain my USE SUB single sided fork and my CB wheel set. 8) If you’re serious, PM me and I’ll see if the...

Re: Re: I still have it, it’s my wife’s bike. Probably been used twice in the last 5 years... :facepalm:

If you really want to confuse things, you can just about squeeze 650b’s onto the whyte...

Re: I suspect that rubber is a separate element, since the bearing has to be installed from underneath. The Dunlop part appears to be a light duty nylon and steel bearing.

Re: http://www.fluro.de/index.php/en/about- ... rsw10druck

Re: No need to measure it, it’s a PBA10. A PBA10 only comes in one size ;)

Good lord, I recognise that bike fotorat, it’s been a long standing resident on eBay for a good while, no? Very original finish on that frame btw :thumbsup: Right, spherical bearings. To save time I’m going to cut an paste the contents of an email I sent to a member here who bought one of my...

Re: I think the OP is set on a later quad-link rear ended PRST-4. That is a very nice example of the PRST-1 though.

At 49cm this one looks to be a medium (my large frame measure 52cm), but as stated above, it'll fit a 6'2"er just fine. https://www.ebay.co.uk/itm/162634041903

Re: I have the manual in my work email. If anyone wants it I'll put it on Dropbox and post a link.

Re: Looks like an earlier frame, but it's very original (originality seems to be a bit of a 'thing' here!). The only non standard item appears to be the saddle. It also has the V brake mounts on the swingarm and fork which is a rare addition. Most '4's don't have these. Treat it to a full...

Re: Re: Exactly the reason it's all been posted here. Enjoy your Preston.

Re: Phone USE, they've probably got a few spares kicking about.

The large sized PRST 4 frame is relatively rare, much more common are medium frames. They are 20mm shorter than the Large frames from seat tube to headtube which is not a difference that was very obvious when riding them. I'm 6'3", and had no problems at all riding my medium framed PRST's, so...

Re: I can't send pictures, as I left the bikes at my in-laws after the weekend, but I can tell you how it was done. First was replacing the steering bolt. Whyte uses a cap head bolt with a very prominent head on it, I replaced this with a normal hex head bolt. To sneak a couple of extra mm of...

Re: Re: They certainly are. Restricted to 15MPH and 250Watts, but it's not easy to implement. I achieved this on my home built bike by using speed and current/voltage sensors feeding into a supervising control computer. The computer intercepts the twist throttle demand signal and backs off the...

Absolutely right about form over function, time has shown that the reported advantages of the design don't seem to have been warranted by the enourmous amount of re-engineering that was required to actually do it, but then the same is true of the entire bike. That said, after a few years of...