| Author | Message | ||
     Surveyor |
(too much)Torque eats tyres:- discuss | ||
| Buellman39 |
2000 miles and threads are showing on mine | ||
| Djkaplan |
A very interesting supposition, but I would conjecture that too much throttle with an ample supply of torque is the culprit here. It would be ludicrous to have a Buell and not let some quality ft/lbs out, though. Tire changes before oil changes..., such is our fate. | ||
| Rocketman |
The power pulses of a V twin come in at different intervals as those of a straight four for example. It's those power pulses that cause the tyre to 'chunk' when applying power coming out of a corner on a V twin. Of course throttle control has a lot to do with tyre life no matter what you ride. Rocket | ||
| Djkaplan |
Would singles be worse on tires then? | ||
| Ivershay |
yes | ||
| Unibear12r |
In the dirt the old big thumpers would kick up a puff of dirt off the tire when the power stroke hit. | ||
| Ingemar |
What Rocket said. It's the ignition sequence that eats tires. Of course with 10hp it won't hurt the tires, so its a combination of things. | ||
| Rocketman |
Would singles be worse on tires then? I think the facts would be pretty subjective toward the individual make of machine(s). How big? How powerful? The manner in which they're used etc etc, and of course the tyre characteristics themselves. Size? Pattern? Compound etc and the manner in which the machine in question is being used but I think you'll find the answer is a single will NOT wear the tyre as much as a twin or multi cylinder machine. A multi cylinder machine fires its cylinders at evenly spaced intervals in a conventional set-up. Whilst this gives a smooth feel it allows the tyre to spin up because there is less time for the tyre to recover between firing strokes compared to that of a twin cylinder machine firing both cylinders in pairs (or in close proximity) as is conventional. This is the reason 'big bang' motors are increasingly popular on the race track. "Big bang" motors are set-up for example as if they fire like a V twin by firing two sets of cylinders in pairs. This means fewer power pulses allowing the tyre more time to regain grip. In the case of a single cylinder machine the tyre has a full four stroke revolution to recover between each power pulse. That would suggest a less harsh life for a tyre than in a V twin or multi cylinder machine. Rocket | ||
| Vonsliek |
hahaha .. djkaplan .. wonderfully articulation!!  it made me feel smart reading & comprehending all them fancy words!! i think surface attributes contribute to tire wear also .. as do heat & gross weight .. oh, so may things to consider .. what of motogp tires .. such cutting edge quality on so well engineered tracks & bikes ridden by such skilled riders yet tires seem to decide more races than not. i think 10 hp in water at full throttle till bust will underwear a tire on a 100+ hp 80+ ftlb monster ridden moderately on bad roads daily for a few months. | ||
| Martin |
I had a 54bhp two-stroke 250 twin that shredded tyres whilst my 686cc four-stroke 60bhp single track-day bike was very gentle on the centres. You could take huge liberties with the throttle mid corner without unsettling the chassis and the noise didn't alter but the rate at which bigger four-cylinder bikes were swallowed up around the outside, inside, over or under was very flattering! That's very similar to my XB My early prototype Hayabusa was an absolute tyre eater, in a similar way to 3-litre Capris, that would make you think the clutch was slipping but it was the tyre(s) spinning! Some of that was due to forward engine placement but mostly due to the huge bulge in the torque trouser dept. What I think e sometimes interpret as a lack of throttle response is simply the sensory effect of a flat as opposed to a rising torque curve. | ||
| Flick |
...tires wear out...buy new ones! | ||
| Surveyor |
EVERY 2000 MILES....???? | ||
| Buellman39 |
What are you tying to say | ||
| Charlieboy6649 |
Road makeup has a lot to do with it... | ||
| Flick |
If the "what are you trying to say" thread is pointed in my direction(?), I think it's pretty obvious ... no matter how long it takes for your tires to wear out - and let's face it, we all wish they lasted MUCH longer - when they do, you gotta buy new ones. Debating why they wear out is about as useful as discussing on which day the sun will cease to shine...when it happens, we'll all know! If you can ride so they last twice as long, are you gonna be happy riding that way? I'd rather just ride 'em til they flat spot in the centre with almost no tread, and replace them with new. When I take the Buell to a track day, experience now tells me I'll get maybe 2-3 track days out of a good new tire...if I just do my usual day to day riding, I'll get somewhere between 4000-5000 miles...you get what you get... Maybe someone will start a thread on why the Buell uses gas...and why we have to keep filling them up... Sorry, maybe a bit peevish on my part...I just replace them when it's time... | ||
| Surveyor |
This board exhibits a relentless search for bhp and I've always held that once you have a certain amount of BHP (the amount depends on the riders ability to use it) then setup becomes more important and better value. It is also a commonly held view that More Torque = Good. I'm suggesting that above a certain level more torque may not = good Its called inviting reasoned debate and it's one of the things that makes this board so good. |
