[grant40k]

hello people

i was wondering why so many of you supermoto mini riders go with a ttr125? The kx, yz, and cr are all reeeealy fast bikes and you can run them almost compleatly stock. a rider in the supertt circuit who placed second runing was 1.12 lap times on a husky 450cc and gess what that was the average lap time for the 85cc two stroke class. plus most of you ttr riders use are supension so why not just use the whole bike?

thanks for your help
#124

 

[Fast150]

hello people

i was wondering why so many of you supermoto mini riders go with a ttr125? The kx, yz, and cr are all reeeealy fast bikes and you can run them almost compleatly stock. a rider in the supertt circuit who placed second runing was 1.12 lap times on a husky 450cc and gess what that was the average lap time for the 85cc two stroke class. plus most of you ttr riders use are supension so why not just use the whole bike?

thanks for your help
#124

First, you need to get out of the house more often (6+ topics in the last few days) Second, some of us that race are limited to cc sizes 4 stroke-wise. In the TMGP, the largest legal 4 stroke is 125cc for ins. reasons. Me, I just like the four stroke better, as it has proven more reliable in the endurance racing that I do than the 2 strokes. That, and I wanted to do something different, as no one in my club had a hogged-out CRF150 that could compete with the 65cc two stroke gp bikes, so i built one. The ttr125s are also a little slower, and more forgiving than the 85cc bikes. They are also a little smaller. The list could go on forever, but that's my take.

 

[grant40k]

you say that the 4strokes are more reliable but have you ever tryed to rebuild a top end on a 4 stroke. almost all repairs on a 2strokes are quick with two people.

#124

ps
"First, you need to get out of the house more often (6+ topics in the last few days)" i know. ive been at my dads house and my newborn brother makes leaving the house almost impossible.

 

[sponge]

i have a ttr125le that's done up. i can only speak for myself and why i 'mini street tarded it. i have absolutely no racing aspirations (but the local series allows me to run up to a 160cc engine (www.supermotocanada.com ) in the mini-class). this is the seventh bike that i've owned. turns out i like to tinker with engines and wheels and i really don't ride farther than the local coffee shop or mall. i wanted a super light bike to play in traffic, be able to use all the gears to redline (unlike a sport bike where redline in third is in the 'loss your licence' catagory on just about any road), and it is easier to make a 4 stroke street electric start street legal then a 2 stroke. i also wanted a street bike that i was pretty sure i wouldn't see another of in a parking lot (i hate getting lost in the mass of sport bikes and cruisers with racing pipes for individuality). the bike may be slow, but i'm grinning silly big every time i bounce a shift off the rev limiter. this bike is the most fun i've ever had riding on the street.

 

[Fast150]

you say that the 4strokes are more reliable but have you ever tryed to rebuild a top end on a 4 stroke. almost all repairs on a 2strokes are quick with two people.

Yes, but the repairs aren't as frequent, and you don't have to "rebuild a top end" unless something breaks. Of course, the motors do need freshening up every season, to every other season. I sent my motor back to EO for a 175 kit, and there were no signs of wear, although a valve spring did break. I have been racing mine for a season and a half, other than the valve spring it has run flawlessly. If I was running a two smoker, I would have gone through several top ends, and probably a crank, by now. One of the big reasons why I win is 2 stroke attrition. For the most part they are not as realiable as the 4s for endurance racing. And I don't have to do a tear down after every race. Keep in mind, I am talking about endurance racing, 6 hours so far this season, and the wear factor is a much bigger issue for the two strokes. All I do is change the oil and go.

 

[tbone]

re:

You said TMGP max cc is 125 and then went on to talk about your 150 then 175 cc.. How are you legal?

 

[want2race]

For me, a four stroke 125 is the largest of the pit bikes. 150+cc fours and 85cc two strokes are no longer "pit bikes". Yes, I would be faster on a YZ85 minimoto, but I would hate to ride one at 3-5mph on the trail or cruising through walking traffic (actual "pit" bike riding). I got a TTR as a "do-it-all" bike. Fun on dirt, pavement, trails with the wife on her 4-wheeler, to the store (eventually) and general back yard hooliganism.

 

[Fast150]

You said TMGP max cc is 125 and then went on to talk about your 150 then 175 cc.. How are you legal?

I race in the CMRA mini endurance series
Formula 5

But I have raced several events with the TMGP on a different bike.

 

[SMWRF88]

I race in the SMUSA series where the 80's and 85's are not allowed in the mini classes. Jr mini allows up to 65cc 2-strokes and 125cc 4-strokes. Mini allows up to 72cc 2-strokes and 158cc 4-strokes. The 80/85's can race Lightweight against 250cc 4-strokes.