I am going to be doing a 121 also. It looks like I will need to do alot of fab work, not really worried about the snow flap thing will have a body shop bend one for me. Not sure but the skid and track are off of a snocross mountain horse 121. Timber sled says that it is the same as a snow hawk, not sure! Thank God for time and welders, this will make winter go alot faster. What are people using for plastic skiis? C&A's and have a adaptor made?
Cheers guys will post some pics when she is done!