NEW: motorcycle racing quizzes
Started by obiera, June 15, 2015, 04:08:05 PM
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Quote from: Zaph on June 15, 2015, 07:16:14 PMDunlop Alpha 13's. There's no better option for the ninja 300's sizes. 110/70 and 150/60. Priced well too at racetireservice.com.Prior to the A13's, it was the Dunlop Unbeaten 02's. Also awesome but but being phased out with the introduction of the A13's. I'm on the Unbeatens now but going to the A13's for my next set.The Alpha 13's are the spec tire for the RC Cup and RC390 bikes in the Motoamerica series. Same rim sizes.I've got a build thread for my 300 over at kawasakininja300.com. Stop over and say hi. We need more racers there.
Quote from: Zaph on June 18, 2015, 08:48:39 PMI run 150/60 on a 4" rim and use all of it. Been doing it for years on my supermoto. It's the people wedging the 150 onto the Ninja 250's 3.5" rear rim that don't use all of it.
Quote from: Zaph on June 19, 2015, 06:27:36 PMSame rim size, and I use all the tire on my Ninja 300 too. Do you want a picture?The Ninja 300 has a 4" rim. If you ask most of the makers of 150/60 performance tires what the best rim width is, the general answer is 4.00" - 4.25". The 150/60Rx17 Dunlop Alpha 13 was specifically designed for a 4" rim (as on the RC390). The design rim width is documented by Dunlop.You know, the CBR250R and CBR300R use the same IRC Road Winner 140/70 tires that the ninja 300 uses. The difference? the CBR has a 3.5" rim which is more suitable for a 140/70. On the Ninja 300 with the 4" rim, it's a budget concession only, and people need to stop saying it's the best size because it's the OEM size. Those tires are on there because they are cheap.Last weekend at Blackhawk we had a rider on a 300 with Bridgestone 140/70 S20's. Even with decent body position, he ran out of edge on on the 140/70's and almost lost the rear.Hey by chance you're not Bruce Barry, are you?