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Originally Posted by R00ST

Of course 2.2 tires are big enough, BUT bigger is better :) Masher are 4.9 and like 2.4 wide...the tires I have (ofna blazer sst tires) are something like 5.25 and 2.2 wide. They are a block/pin pattern (in between holeshots and gladiators I guess you could say). They look like a beefed up 1/8 tire (taller/wider).

Hopefully the extended/widened crt.5 can handle these ok. If not I will just run my 1/8 buggy tires/wheels and my standard size 2.2's.

Thanks for all the help guys!

If you drive hard and jump big you won't want anything bigger than a 4" 2.2 truck tire. The larger the tire you put on the crt.5 the more leverage you put on the arms, hubs, knuckles, steering rack, and wheel bearings. The strength of the parts in the crt.5 were designed around 2.2 buggy wheels.

If you just want something that looks cool or mows over tall grass thent he big tires will work. If you like to drive the track then 2.2 trucks will be plenty big.