I added many grease-zerks to mine. land speed wasn't never measured,but comparing to my other bikes I thought 25-30 mph. Getting the correct gearing to even get-up there was more of a challenge/cost. So I found a balance of safe fun and just enjoyed the bike. it could pull kids on a sled and cruze the trails just fine. I do credit the NOMA snow track that I accidently chose, that gave me success. Its a very well built track and carriage! Looking back, I would say more horse power. I used a brand new 6.5 clone lol before we knew what clones were. bought it on ebay. the motor was great, no problems. Now theres high performance cams, carbs available! built mine 15 years ago, Sno-flea
the county police often put them road-side temporary radar speed trap things by my little town,, so I would check the speed of all my bikes with it! that was really nice of them! got to use some of my tax dollars. most of the rupps would easily be 45mph and I then weighed 170lb. My favorite bike could never get past 38, all in fun. cuz really when you get more speed, front-end wobble and so many other physics become hazards. a bike that starts an makes fun is where its at.
All that I ever did have was posted on the minidoodle site in the photo section,Sno-flea! One thing I learned is that letting the track articulate, even just a few inches would help, but not necessary. mine was basically a swing arm/solid to the track. My bike was rode hard from the BIG kids, it held up for years with basic maintenance. Im not a machinist or nothing, just normal shop tools.. I used a ski-doo elans ski with one extra leaf, the single tube steering was two pieces of structural tube lightly hammered inside to make it double wall? I studded the track once, I took them back-out. I didn't know why at first, but the solid nerf-bars for foot pegs definatly paid off. I think them pictures was before swing-arm broke and one after I fixed it? that's when it would articulate and handled really well. Thanks Bill