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Old April 5th, 2020, 08:33 AM   #1
saber63
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Name: F
Location: seattle Wa
Join Date: Dec 2009

Motorcycle(s): '90 250 project, '03 250r, '14 STR,12 STR, '01 R6

Posts: 84
Unhappy Pregen current track day tires?

Looking at taking a pregen to the track this sumer for gigles. Bike currently has 10-15yo mt75's with no miles.... (long story for another day)

Quick look found

Biasplys:
Mt75
Sport demon
Bt-45

radial scooter:
City gripper
Angel
demon

Mix and match 130/70r16"front" in the rear but what to run upfront?
Battleaxe s21 rear
Sportec m3 rear



The last option is to spend the monies and convert to 17"
Scooter tires should be fine as id be hardpressed to hit 100mph at any of my local tracks on the 250.

Im all ears!

-Levi
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Old April 6th, 2020, 05:47 AM   #2
Triple Jim
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Name: Jim
Location: North Carolina
Join Date: Jul 2016

Motorcycle(s): Ninja 250

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MOTM - Oct '18, Aug '17, Aug '16
I've never had BT45s let me down at peg scraping leans.
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Old April 6th, 2020, 01:02 PM   #3
DannoXYZ
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Name: AKA JacRyann
Location: Mesa, AZ
Join Date: Dec 2011

Motorcycle(s): CB125T CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR SFV650 VFR750F R1M ST1300PA Valkyrie-F6C

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MOTY - 2018, MOTM - Nov '17
Bridgestone BT45s or Michelin City Grips are are good.

Street tyres with small tread-blocks tend to get feathering at edges of blocks. Seems to cause increased wear. But nothing to worry about. I'm going to try taking my pre-gen with Shinkos on track next. I suspect lack of tread-blocks (just some small stripes) will enhance grip and durability.
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