trx250r trail bike?

[86cr250r]

Hi, im looking to buy a trx250r and i was wondering if they are a good trail bike? or should i get a 4 stroke?

[fulltiltrider]

Originally Posted by 86cr250r

Hi, im looking to buy a trx250r and i was wondering if they are a good trail bike? or should i get a 4 stroke?

Properly set up a r can be a mean woods machine. So many variables in setting up a 2 stroke. Most think that they are high reving and unforgiving. With correct jetting/pipe/porting setups they will pull hard off the bottom just like a 4stroke

[Oklahomarider]

I thought a TRX was a 4 wheeler. Most new high rev 4 stroke engines rev a lot higher than 2 strokes.

[NickRuston]

ya i thought the trx was a high preformance honda quad??

[fulltiltrider]

Originally Posted by Oklahomarider

I thought a TRX was a 4 wheeler. Most new high rev 4 stroke engines rev a lot higher than 2 strokes.

You are correct on both counts. What I was getting at was, most of the time people mod a 2stroke to produce power in the upper rpms, sacrificing the low end. That is really not needed if you know what you are doing with the porting. My r will pull from almost off idle and sign off at about 7800rpms, but boy it sure gets there quick lol. If I raised the port timing and used a different pipe I could probably get 8-10 more ponies out of it but it would move the powerband up and narrow it to say from 5000 to 9500 rpms. Not very usefull in a trail machine.

[xrrider1230]

theres no need to set it up for woods riding if your good enough ride it race ready in the woods

[fulltiltrider]

Originally Posted by xrrider1230

theres no need to set it up for woods riding if your good enough ride it race ready in the woods

There is not one pro racer ever that had an r setup for upper rpms, unless you are talking tt or drag. If you can get proof of one I will believe. Its just common sense, what will turn faster times on a track, something that you have to clutch out of the corners and spin or something you can keep in a higher gear yet have the broad powerband to keep your traction.

For your information, the term "race ready" applies to many different setups. My setups on a oem cylinder for mx, I actually cut the base of the cylinder to lower port timing and widen the port drastically to get time area, allowing for a longer powerstroke and gobs of torque. Many ways to skin a cat.