What say the FOAK about "special" tyres?

Chap I know has one of those Yam 250 Supermotard thingies; WR250X?
Basically a flat as a bastard 250 4-stroke single in an off-road coat.

Anyway, despite the complete lack of power, it's got ubergrippy tyres
which wear at a phenomenal rate. Said chap has got the rear to the wear
marks in 3k miles, which is pretty impressive bearing in mind that he
makes me look like Rossi.

He's asked the supplying dealer to get him the same tyre again, but it
seems there's none in the country, and the dealer doesn't want to supply
an alternative as the tyre is made specifically for that bike...

I'd suggest simply getting something in the right size, but he's nervous
after the comments from the dealer. What say the FOAK?

 

Not the same state of tune as a proper WR250F then?

The only reference I can find is to them coming with BT090s. Are they
that special?

Unless he is backing it in to roundabouts on a regular basis I'm with
you.



--
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| Pete Fisher at Home: |
| Voxan Roadster [ SPACE ! ] Yamaha WR250Z |
| Gilera GFR * 2 Moto Morini 2C/375 Morini 350 "Forgotten Error" |
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I took it out for a spin a few weeks ago. I'd sort of hoped that it was
a TDR with 20ish years of development and was hugely disappointed. Yes
it looks the part, but the engine...

They're good, but unnecessary.

He does, but it's due to inexperience and lack of foresight.

I'd happily ride it on granite circles as I'm sure they'd offer more
grip than the engine needs, but I take it that the insurance company
won't get fussy as long as the tyres are roughly the right size??

 

I wouldn't have thought so, as long as they are the same speed rating.
Might be different in Germany or is it Switzerland where someone once
told me (almost certainly incorrectly) that you have to use OEM tyres.
--
+----------------------------------------------------------------+
| Pete Fisher at Home: |
| Voxan Roadster [ SPACE ! ] Yamaha WR250Z |
| Gilera GFR * 2 Moto Morini 2C/375 Morini 350 "Forgotten Error" |
+----------------------------------------------------------------+

 

In message <a9$>, Gyp <>
writes

Yertiz

http://www.tyre-shopper.co.uk/ts/search/tyredetails.aspx?code=M1407017BR1
H

 

Blimey. It is a bit specific isn't it. What does the 'G' stand for -
Gum-coated?
--
+----------------------------------------------------------------+
| Pete Fisher at Home: |
| Voxan Roadster [ SPACE ! ] Yamaha WR250Z |
| Gilera GFR * 2 Moto Morini 2C/375 Morini 350 "Forgotten Error" |
+----------------------------------------------------------------+

 

Bridgestone seem to do that a lot with Jap bike makers i.e. have a suffix
that is model specific. Marketing ploy IMV.

This WR250X seems to make 30PS. It wouldn't worry a pair of Avon
Roadrunners, although Avon list Roadriders as their recommended fitment.
http://www.avon-tyres.co.uk/motorbike/wr-250-x

Personally, assuming the front is going to be okay for a while, I'd risk
fitting a £75 BT45 and see how that went. If it did not match the front
BT090 then I'd bin that and fit a BT45 on the front to match the rear.

 

Mebbe, but the tyres really can be quite different.

http://groups.google.co.uk/group/uk.rec.motorcycles/msg/0807d5a5dd51d3b4

 

I didn't make my point very well. The bike manufacturers should be able to
make their bikes work with generic tyres. After all, they have to do this
in racing where there are control tyres. Although, I imagine changing the
spec. of a tyre is often cheaper/easier than re-engineering the chassis
e.g. losing 10kg from a lardy old tourer might be more difficult than
asking Bridegstone to make a reinforced version of their sports touring
tyre. Bridgestone are happy as they make more money from special tyres and
the manufacturer advertises their ****-up as a technology advancement.

 

I've got 090s on the RGV. They're astounding.