Quote:
Originally Posted by badcoupe
And a rr tire size restriction like montpelier does national motor cars are limited to 10" rr where as minisprints and other motors are allowed 13"
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Actually, at MMS "National" Midgets have to be 1050lbs and run a 10" RR rim, not tire; "Older" and "Stock Block", no minimum weight, 10" rim; Motorcycle Power (1000cc and up the only restriction) no weight limit, 12" rim. Personally, I like the Montpelier "Less is More" rulebook philosophy and it seems to be working.
As far as a safety risk goes, I've heard of a lot more incidents when a torque tube has gotten loose and wrecked a driver's ankles and legs than I have of chains causing any problems. Proper maintenance and setup and a good chainguard should keep things relatively calm. US Mini/Lightning Sprints aside, look at the New Zealand TQ's; almost all of them run a transverse engine and chain drive these days with no issues that I've seen in video from Western Springs. Notice almost all of them run hairpins, which is a big help in matching suspension geometry with the arc of the chain.