You need to run the same size rims front and back to have any chance of a good handling bike... I would run it 12/12

 

Im interested to understand why both wheels need to be the same size to achieve good handling. Do big bike motards do this as well? Hmm... I'm even drawling a blank on sport bikes. Do that have same size shells front and back too?

 

I agree on running the same size front and rear.. 12's front and back with dunlop tt93's

Buchacan spokes with wheels from rad manufacturing

 

Yeap motards my R1 all sport bikes run the same size diameter wheels front and rear. Two different diameters turn at different speeds and for leaning over and street racing you need them both same size.. In few instances there were some wheels that where 16.5 front 17 rear to help make the front turn a little better but that was in the 90s. Now there all the same size diameter wise.. Having a larger front will make the turning a lot slower than having a smaller front. Dirt bikes need the extra trail and stability of a larger front but not for street..

 

I never knew that... Thanks, it makes perfect sense.

 

Cool. Thanks everyone. 12" upfront and a set of TT93's.

 

the only bikes you will come acroos that have different size from and rear are dirt bikes & some dual sports

 

fyi I believe a lot of allsports guys run trials tires. Check on dcsportbikes

Went there once a couple years ago, fun as tits

 

Rad doesn't make drum brake hubs, right now Buchannans doesn't have rims in 12" but will make custom spokes and install them for about $200 plus the price of the rims which don't exist yet , I am the only person importing the correct rear 12 x2.5 rims for anything but currently only for KLX 110, TTR 110/90 and KX 65. People in Texas (CMRA types) were using a 12 x 2.15 front rim blank that is the correct width for the front and then squeezing another front tire on the rear 12 inch which is a 1.6 inch or using the 2.15 (again too narrow , 2.5 " is the corrrect width) on the rear and squeezing on a rear tire. The handling problems change but are still very apparent if you go fast. The cheapest current solution is to buy tires like a Pilot Power set for the stock rims and try to wear them out while you wait a few months for my proper rims to come out. All the current solutions are flawed and expensive.

 

Kevin, all due respect that isnt true... I respect what your doing, which is making the set-up's for the bikes easier to find and getting the set-up at a better price. The sport needs it but I just want to clarify for those that dont know

I have 12x2.15 CACR rims from rad on my klx with stock hubs laced with HD spokes from buchanan (granted I am running a kx65 front end but you can do it for the stock klx front aswell).. rims were 119 each and the spoke sets were about 75 a peice

here is a link to the cacr 12x2.15
CACR Motocross Rim 12x2.15

 

i race at all sport every year (4th year running) first year i ran some street tires and then switched over to some golden boy trials tires and the amount of traction you can get on polished concrete is unreal

 

Cool, man. I will see you there this season. I will be that slow ass guy on the CRF110 running stock drum brakes. Try not to run me over.

 

Plantkiller; Brakes just slow you down, any of it is immeasurably better than stock, I was just saying that paying a lot of money for the wrong size is a bummer, the rear tires were designed around a 2.5 inch rear like the NSR, anything else is a step back, not necessarily bad, just not as good.

 

oh and since you are running allsport the golden boys trials tire is %100 where its at tire wise, street tires get slick since there is a fine layer of rubber on the concrete.

 

correction........i DID shove a 140 in a 50 lol. she is gonna be a handful and i was planning on getting my testing and tuning in this weekend but had a death in the fam and was up in ny so its gonna be interesting to say the least

 

This bike is now a 201cc YX engine in a CRF 50 frame. Its mine enjoy the pics... http://planetminis.com/forums/crf50/175094-pics-bike-second-try-got-time.html or http://planetminis.com/forums/attachment.php?attachmentid=91873&stc=1&d=1336393954 or http://planetminis.com/forums/attachment.php?attachmentid=91874&stc=1&d=1336394024 or http://planetminis.com/forums/attachment.php?attachmentid=91875&stc=1&d=1336394104 or http://planetminis.com/forums/attachment.php?attachmentid=91880&stc=1&d=1336394371 or http://planetminis.com/forums/crf50/175094-pics-bike-second-try-got-time.html

 

Holy crap, Taz - that thing is a beast! With a 201cc in a 50 frame, the bike will probably wheelie in all gears... I had a TTR50 with a Kitaco 88 bbk, cam, and 20mm carb - and 1st gear was useless in that bike. I dropped the rear sprocket from 37t (stock) to 32t and it still lifted the front end up with the smallest amount of throttle. How do you race that 201cc monster? To me, it would be like riding a mechanical bull around the track. Fun, but dangerous.

 

Will this wheel work with your stock crf front end http://planetminis.com/forums/crf50-crf70-parts-sale/194363-crf-70-12-front-wheel-motard.html

 

Thanks for the info... I think this may work - I will have to look up the hub part numbers.

 

Hello all,

Lots of excellent info, but to get back to the original question, what street tires can I order for the stock wheels?

Isee the 14" Michelin power pures for the front but don't know which width to get for the rear. Any advice much appreciated.

 

Hey @RIG - After much searching, here's what I found that will work with the STOCK CRF110 wheels... You can get all this from Motorcycle Superstore. They offer free shipping. (Front) Pirelli Diablo in 90/90-14. Pirelli Diablo Performance Front Scooter Tire - Scooter - Motorcycle Superstore (Rear) Michelin Power Pure SC in 110/70-12. Michelin Pilot Power Pure SC Front Tire - Scooter - Motorcycle Superstore This is what I will be running to practice until I get wider motard specific alloy wheels. Hope that helps. I will post a pic of this setup later....