Motorized 66cc Fat Tire Mongoose bike, 7 speed, Sick bike parts shifter kit, 203mm disc brakes, hydraulic front fork, ported and polished motor with high compression head, low gearing for trail riding.
I've made 1/4" spacers for the U-bolt clamps to push my motor forward enough to allow clearance between the rear tire and the 17 tooth sprocket. I made a custom exhaust end mount by welding two plates together side by side to create a universal style mounting plate only with a radius. On to the next hurdle. In 7th gear my chains are going to rub. How were you able to get around this? [Edit] 1:42 I see you have a spacer between the sprockets is that right? Don't keep all your best secrets from me. 😁 Help me Obi Wan.... I've watched this video at least a dozen times looking for clues. It's been helpful but I wish I could interview you for all the details. 😁
Geez. I wish I could do that kind of customization. If I lived near you I'd pay you to do the work. :) Where did you get your gas tank? That one looks good on there. My first criticism of most motorized bikes is that the gas tank looks too small or cheap looking.
I know what you mean on my other two bikes I use a rack mounted gas tank and you don't notice it but on this one it's the gas tank that came with the eBay kit I just added some graphics.
@@52drj I did notice after my comment that it really doesn't look much bigger. I think the graphics must really help. Often the tanks on bikes make the whole thing look somewhat comical. Was that you in the chopper video as well?
The motor looks nice too. I want to build one. Can't find the Dolomite for less than $350 though. No big deal. My state limits motor to 1.5bhp and 50cc. What is the motor brand?
Hey 52drj I made my first video for my bike. An introduction to what I'm getting myself into. I used a very short clip of you and your bike here showing how you cut and reinforced the frame. Check me out. Thanks again for answering all my questions in the comments.
@@52drj ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-h9PnTf0MTtQ.html I bought a shift kit already, but still afraid to commit on a motor. XD It's hard for me to grasp the concept that they are all the same. I want to get a motor with 8mm mounting bolts, but I know that will require modifying the mounts. I don't have a drill press.
It looks like you used a normal chain. Sickbikeparts told me I'd need a 415 H (heavy duty) chain for use with my Dolomite. Have you had any issues using a normal chain? Also do you still have this bike? In this video you said you'd post a ride video. Been waiting to see that!
Yes I still have the bike in fact I was riding it yesterday. There's a video on my RU-vid channel showing me riding it around It should still be up. I used the chain they recommended between the motor and the jack shaft and between the jack shaft and the crank but between the crank to the rear seven speed cassette I use the standard chain that came with the bike so it would have the side flex to be able to shift all seven gears. Up at the crank gear I did use a aftermarket chain guide to make sure the chain wouldn't jump off of the smaller front sprocket when shifting gears. The bike's been great I still love it.
@@52drj Thanks for the reply. I ran into some trouble trying to break the 415 H chain. I ground the pins down to nothing and they still wouldn't hammer out. I guess I'll buy a larger chain breaker and try that.
Also, sickbikeparts now makes a rear motor mount for engines with 8 mm studs. I modified mine so I could get a wrench in the left side. I pulled a lot of very small, very sharp splinters out of my fingers for weeks afterwards. 😆
I painted all the shifter kit parts black to match the frame The only thing I polished was the flat aluminum I used to make the chain guards and some aluminum spacers.
How were your rims? I just bought a brand new Dolomite and both rims are not evenly aligned at the seams. A finger nail more than easily catches on one side, the other side being even. From the side I can see daylight between the seam.
@@52drj Thanks for the reply. I bought my shift kit last night, should be here in a few days. I still haven't taken the plunge on a motor yet. The shift kit says that it's designed for 6mm mounting bolts, but I was looking forward to the sturdier 8mm. The kit also says modification may be needed. I'm going to wait till the shift kit gets here and see if I can determine what the modification would be. Then I'll decide on a motor. Today I learned how to adjust my derailleur. I want the bike in top shape before I go slapping a bunch of stuff on it.
Did your motor have 8mm mounting studs? Mine does and I've modified the shift kit housing (rear mount) for the 8mm bolts but I can't get a wrench in that space to tighten them.
I'm looking at it right now and they are 8 millimeter bolts but they have a smaller 10 mm head that way I can get a wrench in there to tighten them. I just can't remember if they came with the kit or if I got them at the hardware store, I Believe it was Ace hardware I hope this helps.
@@52drj Thanks! I bought a 60 degree angle wrench (14mm) for the nuts. Once the wrench arrives it may solve my problem. If not it's good to know I can get bolts with a smaller head. I had no idea that was a thing.
Is there another type of shift kit that could be used that doesn't necessitate cutting the frame? I've bought a Dolomite (hasn't arrived yet) and I'd like to have a shift kit but I do not have the tools or the know-how to do fabrication like this. Are there smaller, or differently shaped 2 stroke motors out there that will allow for a shift kit without fabrication?
Sick bike parts shifter kit was the only one I had looked into because it looked like the best quality. As I remember the main reason why I had to lower the motor was to get that big green head underneath the top bar. I can't guarantee but with the stock head it may fit without notching the frame. The only tricky part will be an intake manifold to get the carburetor and air cleaner to fit inside the frame that's why I curved mine out to the side for clearance.
Wow more than I thought, I hadn't added it up yet. 179.00 new bike on sale off of EBay. 330.00 Sick Bike Parts shifter kit with lower gearing and accessories. 119.00 suspension front fork. 50.00 rear rack and pack. 99.00 EBay bicycle motor kit. 65.00 motor performance parts. 75.00 miscellaneous, paint, mirrors, grips, Speedo. Ect. And a lot of time. It is was worth every penny!! I've ridden this thing in the sand and in the snow, dirt roads and trails, This sucker will go anywhere.
