My Trumpet is supposed to have 170/60ZR17 on the arse end. Can I fit, 180/55ZR17 instead? I fancy the wider tyre with the lower profile. By my checking, there is very little in it. I'd appreciate the input from you clever lot. Oh, I'm looking at Avon Storms. TIA. -- Greybeard FLHTCUI UK-07 Mk II (Sold) Trumpet Trophy 1200-03 Garmin Zumo 550, To get me home! ukrm@foxtails[dot]co[dot]uk
What outcome do you expect from this? If it's a recommended fit, fine, but if you're doing unofficial chassis development work, you may need to let your insco know. This lot? Be serious. The Severn Bore might be more interesting.
Assuming the rubber even goes on the rim the rear will have a 3mm shorter sidewall, so the bike will be geared down very slightly, and the steering angle will be slightly increased potentially slowing the steering. No fucking idea if it'd actually do anything *noticable* to the handling, but that's the measurable difference.
3mm is hardly going to make much difference to the steering angle, is it? Seems to me that fitting the wrong tyre will have more affect the handling than a minute change in SA, no doubt about that. I suspect that putting a wide tyre on a narrow rim is going to make the actual profile a little sharper than if it were on the right rim. What this does to the handling will depend on whether the new profile is flatter, rounder or even exactly the same as the one it replaces and way the design of the tyre allows for the stresses not designed into it to be distributed. On the whole I think it is a bad idea, riding gods may have different opinions.
The Severn Bore is very interesting if you are surfing and quite interesting if you are watching people surfing, especially when they take the inside line on corners and get trashed or stuck in trees. As for tyres, Avon says a 180 needs a 5.5" or 6" rim so the OP needs to check his wheel size before deciding that the original size is best.
In itself, no. But remember, that's unloaded, on a wider tire, so it'll probably compress more.. but erm wibble flip dibble do.
On ukrm? is anybody serious? ) Good point, I'll pop over and have a look. When's the one due along? -- Greybeard FLHTCUI UK-07 Mk II (Sold) Trumpet Trophy 1200-03 Garmin Zumo 550, To get me home! ukrm@foxtails[dot]co[dot]uk
That's more or less how I looked at it. No reason to think the it wouldn't fit though? -- Greybeard FLHTCUI UK-07 Mk II (Sold) Trumpet Trophy 1200-03 Garmin Zumo 550, To get me home! ukrm@foxtails[dot]co[dot]uk
Noted. -- Greybeard FLHTCUI UK-07 Mk II (Sold) Trumpet Trophy 1200-03 Garmin Zumo 550, To get me home! ukrm@foxtails[dot]co[dot]uk
IIRC rim is 5.5". But I'll double check now. -- Greybeard FLHTCUI UK-07 Mk II (Sold) Trumpet Trophy 1200-03 Garmin Zumo 550, To get me home! ukrm@foxtails[dot]co[dot]uk
message The way I go round corners nowadays, I doubt it would make any difference ;o) -- Greybeard FLHTCUI UK-07 Mk II (Sold) Trumpet Trophy 1200-03 Garmin Zumo 550, To get me home! ukrm@foxtails[dot]co[dot]uk
That all depends on the rim size, ytc. Find out how wide the rim is, then check with thetyre manufacturer's web sit what range of witdths the tyre you want actually fits on
I've told this story before, but as it is relevant, I'll go again: I have an RF900, which takes a 170 rear tyre. The Bandit 12 uses the same rear wheel, but takes a 180 rear tyre. The RF, not the finest handling bike in the world, can be persuaded around corners at a reasonable rate by hanging off a bit, and gassing it right at the apex. I put the Bandit wheel, with its 180 tyre on the RF. What a fucking disaster - it /would not/ turn in to corners, it didn't want to do sweepers. It wanted to sit upright for the rest of its life and never be leaned over again. Me and it got up close and personal so often with local grass verges that we were on first name terms. In short the handling went from 7/10 to 3/10, but was instantly restored to its previous score when the original wheel and 170 tyre were refitted. Nutshell - don't do it.
Noted. I've since been told by some of the Triumph chaps, that putting the 18 tyre on makes no difference to the handling. Apparently, the Daytona uses the 180 over the 170. I'll find out in the future when I fir the 180 I've bought. If I don't like it it'll be back to 170 pronot. Thanks for the input. -- Greybeard FLHTCUI UK-07 Mk II (Sold) Trumpet Trophy 1200-03 Garmin Zumo 550, To get me home! ukrm@foxtails[dot]co[dot]uk
I deeply regret not trying a 180 on my TLR for the same reason: it took a hefty lean on the bars to turn on the stock 190 and it just felt wrong in the wet.
