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so as you can tell i'm new here. picked up a mb165 roller. so far i have a 212 predator engine, pmr performance jackshaft kit, and a max torque 11 tooth clutch. the jackshaft has 15/13 sprockets, the rear is a 50 tooth. using the calc i get a 5.24 ratio. any input good or bad so far? also...

does anyone make a rear sprocket for the mb165 for a #35 chain? i have the stock 50t sprocket and i'm pretty sure it uses #40 chain. the clutch and jackshaft kit i'm using use #35 chain. i did a search and didn't find any info. thanks guys.

so i have an mb165 roller, a 212 predator engine, and i'm looking at jackshafts now. will a kit like this one work ( Adjustable Jackshaft Kit #35 13T 18T Lock Collars Key Stock - Weld On ) ? i'm guessing it's adaptable to pretty much anything.? this is my first build. thanks guys.

not sure on the rear sprocket tooth count, i'll have to check. i appreciate the info guys.

thanks for the info. just got back from harbor freight, got the 212cc predator out the door for $102.xx. was on sale for $119 and i used the 20% coupon. can't beat that deal.

hey i see your in port richey, i'm down the road from you in springhill.

thanks guys. how do i know what kind of gear ratio to use when i get the jackshaft, is there a a general starting point or? i'm more interested in lower end than top speed.

i'm new to mini bike building and have a question, the first of many i'm guessing. so i have an mb165 roller that i'm going to put a predator engine on. do i need to use a jackshaft or can i just run a chain right to the clutch? the main goal right now is to get it up and running, the do some...

thanks guys. i'm about an hour north of tampa. i had an emerald green 92 mustang coupe so i used that name. don't have the car anymore but i use the name on the forums, easy to remember,lol

because i don't have enough projects right now ( 66 mustang and an 82 honda 110 3 wheeler) , i picked up this baja motorsports? roller. it's missing a few things but it's better than it looks. i figure i'll throw a hf predator on it and have some fun. i've never built a mini before so this...