HOW TO GET A BIGGER CONTACT PATCH FOR FREE

[OB_Dirty Pete]

Drop your tires to 35/35.

 

[Frank Adams]

remember pete, what your sacrafises are when you mess with tire pressures. what one air pressure setting does for one tire is a totally differant thing for another one. there are a alot of differant things that come into play with differant tires.

 

[Frank Adams]

peter: you may have been better off going with a 190 insted of the 200. that would do just what your after. you would have even more contact to the pavement because it would stretch the face of the tire. the 200 would make it more of a rounded face...

 

[OB_Dirty Pete]

Frank I haven't had the 200 on the track yet and you may well be right that it'll be less glued than the 190 ME Z3 was due to the very different profiles of the tires.

In the meanwhile, I really appreciate the strong improvement in first and second gear full throttle straight line acceleration.

It's a kick the way a tire spinning launch will slowly turn into a long wheely with this tire as that big contact patch gains grip from the heat.

It's the best all around compromise I've found so far.

 

[Frank Adams]

the tx-25 is probably the best street tire you can get right now. just make sure you get the race compound.
when you pin the thottle on your bike and you say it wheelies, does it come all the way up or is it just caring the front wheel at a controlable level?

 

[OB_Dirty Pete]

You're absolutely right Frank. 35/35 is just my guideline for the OE tires...it's what worked best for me, my weight and riding style.

I have been on several other tires since the OEs, and used slight variations on the 35/35 theme. You have to experiment.

Right now I've got an ME Z3 front and a tx25 200 rear, and I find 35/37 works well.

The factory 42/42 settings make your contact patch unnecessarily small, and you can feel it when you take the tires to the edge.

If I am sacrificing some durability to get that extra traction, I haven't noticed it.

 

[OB_Dirty Pete]

Frank, I am not using the race compound tx25 200 because unless you get it up to proper operating temp (which you can never do on the street) it's slipperier than the street compound. I'm running the tx25 200 Hi Sport.

You can, of course, take your choice of rocket wheelies or long low ones, depending on where you place your weight. I'm talking about the fastest possible acceleration, bent over on the tank, just the way you like it.

For me, on the OE tire and on the ME Z3, wheelspin starts would not evolve into wheelies unless I moved my weight back. The wheelspin just stayed there until the tire hooked up in the middle of second gear.

On the tx25 on grippy pavement, wheelspin evolves at about mid first gear into a long, low, easy wheely that does not require any throttle modulation and lasts well into second gear.

I just leave it pinned and it does not blow over backwards.

On the assumption that you are not into wheely bars at this point, how is your tx25 race compound running on the strip?

I can see how it might be great for drags after a hot burnout.

FYI: I'm dyno-ing and re-re-re-remapping my bike next Tuesday, plopping in a 16 tooth sprocket, and dragging it for only the second time the following weekend. Yes I know you prefer going up 2/3 teeth on the rear sprocket. I only have RS-3s and the full-cut airbox mod. I will definitely do Gixxer1330Rs electrical, engine oil and swingarm tricks, too.

I am not a dedicated dragger, although I love it. Hoping to get into the nines, but not counting on it. Made 10.25 dead stock last spring.