Trying to Classify Bikes to race

TTR125's here run in the 85 class unless it is the L version with bigger wheels then it is only allowed in Supermini or the 125 classes.

That's a pretty diverse line up of bikes to run together and still keep everyone happy, good luck.

TriniG said:

When you say 85s are you talking about like YZ85s? A TTR125 would be outclassed by the YZ85s horsepower. a TTR125 only has about 9 h.p. The KTM 65 has 16 hp. Where can I find out about the Supermini class?

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Yes I'm talking about 85 cc 2 strokes. It is mainly based on bike size, as no one expects them to be competitive. Not sure I would want my child on a PW50 racing on the track with someone on a TTR125, pretty big bike to fall on someone small enough to ride a PW50. The supermini class is full of stock 85's but it also allows the big wheel 85's (CR85 Expert) as well as KX/RM100's and KTM 105's.

Based on the 2006 CMRC rules which I believe are a straight copy of the AMA rules the TTR125 is no longer legal in the 80's class either, this what they state for classes:

50cc class - 0-50 cc 2 stroke or 0-73 cc 4 stroke.
65cc Class - 60-65cc 2 stroke or 0-80cc 4 stroke
85cc class - 60-85cc 2 stroke or 60-100cc 4 stroke

Likely this change is a direct result of making sure we don't end up with the manufactures creating an 80 class full of mini thumpers like the now defunct 125 class.

The spread of bikes you have listed is completely unrealistic to expect them to "race" each other with any sense of actual competition. Perhaps the focus of this class needs to be fun with no staggered starts etc to give the sense of competition. Also in that sense it usually becomes everyone get's a trophy or no one get's a trophy as it's a fun class.