October 31st, 2016, 06:18 PM | #1 |
ninjette.org newbie
Name: Ricky
Location: Squamish, BC
Join Date: Mar 2016 Motorcycle(s): Cbr1000 repsol and ninja 300 Posts: 4
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Track day tire size
Hey I was wondering if anyone here is able to answer a question of mine. I use Pirelli Rosso 2s for racing , size 110/70 front and 140 rear, but I have been wondering if I should try out a 120 front and 150 rear. Anything I could expect to happen or change ? Im happy with the Rosso 2s but I'm still a novice racer and they are the only tires I know, so any tips are much appreciated . A side note, I have slight chicken strips on the front tire , but my rear is completely chewed up, is this a problem in the racing world ?
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November 1st, 2016, 10:24 AM | #2 | |
Fighting Texas Aggie '05
Name: Neil
Location: Hutto, TX
Join Date: Feb 2009 Motorcycle(s): '07 ZX6R, '08 Versys, '09 250R Track, '93 F2/F3 Track Posts: A lot.
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Quote:
Do you need a 120/150 sized tire ..... no. Can you run those sizes successfully and be competitive ..... yes. Would I run a 120/150 tire if a 110/140 set was available ..... probably not. But each rider is a little different.
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November 1st, 2016, 10:45 AM | #3 |
The Corner Whisperer
Name: Chris (aka Reactor)
Location: Northern KY
Join Date: May 2011 Motorcycle(s): 2010 250 (track), 1992 250, 2006 R6 (street/track), 2008 R6 (track) Posts: Too much.
MOTY 2015, MOTM - Nov '12, Nov '13
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While tires are a personal preference and new seasons may present new tire options... many experienced racers go in the other direction with tire size. 90 in the front and 140 rear (even 95f/115r slicks). Have I raced on a 120/140? Sure, did it really make a difference, not really. Do I want a 150? Not currently, the grip offered by the tires that I am aware of do not warrant the extra weight of the larger tire.
Next would be the tarmac you are racing on, different regions have a "preferred" tire that offers optimum grip on the surfaces you're racing on. Chat with a few of your fellow expert racer buddies and see what they think but don't be afraid to try something new. No prisoners... only trophies.
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Goal: Shake A Million Hands | Look through the corners | Track Day Prep | Closest track? | The Mid-Ohio School |
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November 12th, 2016, 02:27 PM | #4 |
ninjette.org member
Name: Greg
Location: San Antonio
Join Date: Dec 2014 Motorcycle(s): Ninja 300, GSXR-750, Ducati M1100 Posts: 185
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I like the Dunlop Alphas. They are pretty cheap and come in 110/150 size
http://dunlopracing.com/tires-products/alpha-13/ |
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November 12th, 2016, 03:20 PM | #5 | |
ninjette.org sage
Name: John
Location: Appleton, WI
Join Date: Apr 2015 Motorcycle(s): Ninja 300 (race), Ninja 1000 (road) Posts: 504
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Quote:
It might be interesting to know that Kawasaki Japan just announced that the domestic market Ninja 250 "KRT Edition" (whatever that is) will be getting Bridgestone S20 110/70/17 and 150/60/17 for what they describe as "improved handling". I've heard a couple of faster guys on 300s tell me that they had to go to a 150 rear because they were running out of edge with a 140. But then again I've heard people say a 140 rear is fine for racing so who knows. In general however, a 150 is generally considered optimal for a 4" rim. 160's need 4.5", 140 need 3.5", 180's need 5.5", and so on. But there is obviously some flexibility to these rules.
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November 12th, 2016, 03:23 PM | #6 |
ninjette.org newbie
Name: Ricky
Location: Squamish, BC
Join Date: Mar 2016 Motorcycle(s): Cbr1000 repsol and ninja 300 Posts: 4
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Awesome thanks for the reply guys . I'm most likely going to stick with the 110 front , and maybe 150 rear since I can't seem to find a new Rosso 3 in 140. 150 should be a new experience so I'm looking forward to it
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November 12th, 2016, 04:56 PM | #7 |
ninjette.org sage
Name: Matt
Location: San Diego, CA
Join Date: May 2012 Motorcycle(s): 2007 Triumph Bonneville; 2008 Ninja 250r (trackbike) Posts: 748
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Ive tried numerous combinations and my favorite combination is a Pirelli DOT race tire or Slick front in 120 size and Rosso II 140 size in the rear.
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November 12th, 2016, 09:13 PM | #8 |
Track Clown
Name: Chris
Location: Kingman, AZ
Join Date: May 2012 Motorcycle(s): '08 250R, 21 MV F3 800, Kawasaki 400 build Posts: A lot.
MOTM - Sep '15
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i would suggest a 110 front and either a 150 or 140 rear. I prefer a taller rear tire to put more weight on the front.
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