speed

I'm not sure if someone already thought of this one, but I thought I might as well get a laugh out of it. I dreamt this up a few years ago. Hope this diagram makes sense: J P A T C O K ---~~~~~~~== Fourth...

I have 2 Trailhorse's one with a brand new 2 speed and one with the original 1970 2 speed and nether of them seem to shift. Not sure if the Rmp's or speed isn't getting up high enough to shift? Both have new predator engines. Any ideas. Thanks

Hey all! Forgive me for being spotty in my postings, i have rather poor internet here in camp. So after getting my Doodlebug running well, i enjoyed it for a bit with the stock 97cc engine. Was quite reliable, and easy to handle. Struggled with inclines, but it had a respectable 27mph top...

Curious to find out what this is. The engine clutch is a dual pulley. the kick lever engages one of the two belts. The brake is an interesting set up as it has a belt wrapped around a pulley. any help would be appreciated

Hello, For sale is a complete 2 speed set up. Used for less than 1 hour then removed and stored a few years ago. Jack shaft mount is a heavy duty home made unit. 3/4 " max torque engine clutch & Comet 2 speed transmission. 12 tooth sprocket to rear wheel. $220.00 shipped. Postal Money order...

Bought 2 speed jackshaft and clutch separately, both as NOS here on OldMiniBikes. Adjustable jackshaft kit bearings and collars all new from OldMiniBikes WHS. Asking $250 for all including USPS. Prefer PayPal as a gift. Packed and ready to go. Ask any questions and I'll do my best to answer. Please PM only, per...

Frame has damage

Having owned several Honda 90's with a 2 speed hi/lo setting, I keep thinking a mini trail bike could use one. Only thing I see is a 2 speed clutch. I am hoping to build a bike with a TC and a jack shaft. I remember the early Honda 90's and some of the Suzuki 185's came with two rear sprockets...

Frame has damage $195-original 4 speed clutch frame

I have a new never used Comet 2 speed jackshaft clutch I bought for a project that never materialized. Price is $160.00 shipping from 90242 Torque converter shown in photos is available in a separate post and is not included in this sale. more photos here...

Good day all I need sounding board for my thoughts on how to reduce top end speed. Recently purchased what I believe is a doodle bug, and with the current gear and engine set up the online calculators show me a top speed of 31mph (stock tires, 1:5 ratio and 3600 rpms). Way too quick for my 8...

Like it says up there. $158 shipped

I have an NOS driven assembly on the way and would like to find the correct 2 speed dual sprocket clutch if possible only because If I go original Its exposed so its gotta be the right clutch. complete clutch in good shape only though please. Also want/need an original 1968 only chainguard...

Bought this basket case last June. I just finished it today and took the first ride!

I am in need of a stock low speed/idle jet for a predator SP 60363 carb.

I bought this comet jac-mount just like it is, I know it's for a 2 speed setup, but I'm confused on how the setup is aranged on the jackshaft. In the the ad it say's manual shift. I'm use to the automatic shifting 2 speed setups. Any info appreciated. Hopefully someone has a photo of a...

Rebuilding a Super 2 Speed and need the engine clutch. Not pick on brand/style. Thanks

i have a 1969 all original Rupp Roadster. I have issues with the transmission slipping going from 1st gear to 2nd gear. I replaced the spag bearing the first time and it was perfect. 6 months later it was doing it again so i replaced again. It is better but still have to feather the gas to get...

i have a 1969 all original Rupp Roadster. I have issues with the transmission slipping going from 1st gear to 2nd gear. I replaced the spag bearing the first time and it was perfect. 6 months later it was doing it again so i replaced again. It is better but still have to feather the gas to get...