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roger albert's Avatar
 
Join Date: Aug 1999
Location: Austin, TX. USA
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occasional track day / mostly street tire

OK gang,

Some of you have done a lot more trackdays than me so I'd like to hear your learned opinions.

One of my bikes, the streethawk, sees mostly use by friends whose bikes are for whatever reason, on the fritz, and sometimes used as a loaner for some of my best customers.
As such, I prefer not to put a super-sticky, super-short-life tire on it again, when the current old D208s give.

Otoh, it once in a blue moon will get a trackday when I want to take two friends (in which case my normal guest bike, the track-hawk, is not sufficient) The context is thus very low duty cycle track use by very new, non-agressive track riders, on a very low power bike.

I've experienced great grip from some ST tires, including the Pilot Roads, and nearly as good, the BT020s.

I'm leaning towards the latter since this is a pro-bono/charity kind of ride I supply folks, and not really a commercial thing, and I'd like to keep my out of pocket cost reasonable.

Is a BT020 on the track in the above context crazy?
I want to save some cash, but not, of course, at the cost of
endangering a friend. I suspect in this limited context, it would do fne on the track (I've seen much more marginal) but I'd sure like to hear any opinions to the contrary.

i.e. if it's truly imprudent, please talk me back to BT014s, even though I'll see shorter life.

I'm not considering Metzler or Pirelli, as my disty doesn't handle them. MIGHT consider others, but I'm really trying to focus on a go/no-go on the 020s here.

Thanks in advance for any feedback.

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Old 08-02-2005, 10:11 AM
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Dude,

People are holding asses with GSs with the stock tires on race tracks!

I think going with full blown sport tires is more a piece of mind than anything else.

I got a set of RoadAttack and they stick as much as the Diablo or 010 I had in the past...
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Old 08-02-2005, 10:16 AM
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I tend to agree, thus the hatching of this scheme, but more input is better. I can just now (when I don't hang off enough and have a bit too much lean) begin to approach the limit of the stickier 014s, but, only when pushing hard, and making a mistake, and running an SV (which though slow, is still about a 50% power bump on a Hawk)

Thanks for the note, and look forward to more.
Hopefully some of you guys have done the track on ST tires.
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Old 08-02-2005, 10:26 AM
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diablo stratas if you can get them in the size you need.

repoe3
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Old 08-02-2005, 10:35 AM
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Old 08-02-2005, 10:55 AM
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I've done track days on ST tires. No issues. I'm 75th percentile fast on most track days. Reg Pridmore does his two-up very-quick charity rides during CLASS schools on ST tires.

Given the risks you're already taking in loaning out bikes for track days(I admire your generosity, but I'd be sure to have your business or umbrella policy in good shape), running ST tires rather than full-sport tires seems like a very small incremental risk. Of course, the extra mileage of ST tires is pretty incremental also. When the local BMW dealer gave out service loaners, I think they shod them with rock-hard Marathons.

- Mark
Old 08-02-2005, 11:13 AM
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Thanks for the continued feedback and good comments.

The trackday loans are just for friends who lend a hand in the shop when I'm particularly busy, and my brother, so I hope I'm covered there.

I've also toyed with the idea of taking the 014s off of my mostly-street SV, which have the tires wearing out faster on the sides than the middle, and slapping them on the street hawk. Sides and middle would both probably end up wearing out at about the same time, which would be cool.

Decisions decisions
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99 R11S w/ BBP, InDuct, Íhlins, PVMs, Braking, SJ-Filter, ZTech, HIDs
D675 R90Cafe R60/2 M900 SV650-SS CBR150R XR125 & CRF175 Motards


OnRoad OffRoad Cycles, Austin, TX: BMW, Ital, Suspension, Electrics
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Old 08-02-2005, 11:29 AM
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I have run both Diablo Corsas and The Metzeler Sportec's on the track, both stick like glue, even when dragging the pegs. Very stable over bumps as well as I can attest from running Pocono last weekend.
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Old 08-02-2005, 04:45 PM
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Roger,
Your original question was about the 020's... They should work fine for the wittle hawk, I have used them, on my Superhawk, and the "S" pushing them very hard with no issues.... But I will also concur with repoe3 regarding the strada's.... they can be had for the same price as the 020's they stick like glue, and last 2wice as long as the 020's. Not sure who your distributor is.... I was using T/R but found I could get the pirelli's cheaper from SWmotoonline than I could get the 020's from my distributor...
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Last edited by wswartzwel; 08-02-2005 at 05:20 PM..
Old 08-02-2005, 05:18 PM
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Hi Bill,

Thanks for the tip. I'll look into them as well.
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D675 R90Cafe R60/2 M900 SV650-SS CBR150R XR125 & CRF175 Motards


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Old 08-02-2005, 05:35 PM
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roder,
my current favorite is the Super Corsas Diablo Dragon,(not the Pro Corsas).
Sticky, heats up fast, little breakin, works in the rain and you'll get 3000 miles.
Jeff
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Old 08-02-2005, 05:38 PM
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Roger,
I had a set of 010's on my S and ran the rear right off the edge of the tire on the street. No traction issues whatsoever. I got about 8 K on the back before the heat cycles got the better of it. On the widdow Hawk it should be no problem to run 020's.

As light as that bike is, just about any tire will work for non-agressive riders, they ain't gonna stress 'em enough for traction to matter.
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Old 08-02-2005, 06:12 PM
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i agree with ed. also, if you're talking about relatively slow riders on a little bike, they may not get enough heat into the tires to get the real sport tires into the proper temperature range. sport touring tires should be fine.
Old 08-03-2005, 03:41 AM
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thanks guys.

8k. Jeez Ed. That's a lot from an 010. Would be good even from an 020.

Good point on temp too Scott. First time I loaned my trackhawk out (or for that matter, first time I used it) I had to drop tire pressure more than usual to allow our slow selves to get any heat and grip - not that we needed much in general, but as beginners who make mistakes and then have to really lean and overcompensate to stay on track, a fair amount of grip can still end up being needed.

thanks guys
Roger
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99 R11S w/ BBP, InDuct, Íhlins, PVMs, Braking, SJ-Filter, ZTech, HIDs
D675 R90Cafe R60/2 M900 SV650-SS CBR150R XR125 & CRF175 Motards


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Dealer for K-Tech, JRI, GP Suspension, Penske, Íhlins, RaceTech, Elka, Wilbers, IKON & Works
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Old 08-03-2005, 01:39 PM
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roger, check your PM.
Old 08-03-2005, 04:21 PM
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I'll agree with the 8K being a lot. About 6K of that running was freeway running. 2 consecutive weekends of curve burnin' turned the sides blue and all nubbly. Traction was gone at that point. Nice tire though, gentle release and easy recovery with no squirming at the edge. Little noisy over there but that could have been the cupped front.
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Old 08-03-2005, 11:48 PM
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Roger,

I have been running Pirelli Diablo's (not the Corsa's) on my GS since my conversion to 17" cast wheels.

They stick like crazy for track days, and I get more miles out of them (5-7k) than the BT014/BT020 combo I am running right now. It looks like the rear 020 is going to be gone before 5k miles.

I switched to the Bridgestones because I was commited to a two-up ride on a Sunday, and discovered that I had worn down the rear Diablo almost to where I had the air showing, and they were all I could get on a moment's notice.

When these Bridgestones are gone, I'll be right back to the Pirelli's.

Naturally, YMMV, and all of that.

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Old 08-04-2005, 10:21 AM
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