The best way to 40+mph

conradcliff · #1 (**permalink**) 10-20-2008, 10:02 PM

Hey everyone! So I've been spending some time looking around the sight trying to find out what people think is the best engine and kit combinations and I've got a couple ideas but I'm not sold yet. I guess what I'm trying to do is get to a 40+mph bike with the least amount of money possible (I don't want to spend so much that I could have bought a used moped) while still maintaining reliability.

I weigh in at 175lbs.
The bike will be a full suspension mongoose MB that I plan on putting some high pressure cruising tires on.
We don't have any hills that I really need to worry about since I'm in Florida.
And I don't mind doing a little pedaling if I have to to get started.

What do you guys think, is it even feasible? Or am I just dreaming here and would need some serious cash for a high performance engine.

As always your opinions are greatly appreciated!

Large Filipino · #2 (**permalink**) 10-20-2008, 10:04 PM

It won't be legal but a B&S engine no gearbox straight centrifugal clutch to small tire with large sprocket as a trailer pusher gearing will be high.

conradcliff · #3 (**permalink**) 10-20-2008, 11:10 PM

Interesting, what is illegal about it? I'll do some searching to see what a B&S engine is.

stude13 · #4 (**permalink**) 10-21-2008, 02:46 AM

put briggs style into search. b&s is briggs and straton.

Walter F. · #5 (**permalink**) 10-21-2008, 05:40 AM

Quote:

Originally Posted by conradcliff

Interesting, what is illegal about it? I'll do some searching to see what a B&S engine is.

Easier still, tie a rope to a friends car and tie the other end to your bike and have them drag you to 40+ mph to see if you got the nerve to go that fast on a bike in the first place, it worked for me! Happy Trails Walter F.

Pablo · #6 (**permalink**) 10-21-2008, 07:00 AM

With some tuning, porting and parts (TPP) a China girl will do 40 mph. Ask me how I know.

.

Is it safe? I'm alive. But when I think back, I get a little shivery.

conradcliff · #7 (**permalink**) 10-21-2008, 11:43 AM

Great replies everyone! Duh, Briggs and Straton, I feel like a retard now..

Walter: what kind of rope should I use for this? ...jk
Pablo: The only thing about those china engines that I'm worried about is dependability. I'm not sure I want to go that route.

Perhaps I am being a bit too over zealous and 40mph is just a bit too fast. The thing is that I am trying to replace my car as effectively as possible and if I can't get half decent speeds it seems like I wont be able to utilize the bike as much as I'd like.

What kind of speeds do you guys think I can achieve with one of Dax's 4 stroke titan kits? What do you guys think about that engine and would I be better off with a titan/different kit or a different engine/Dax kit?

old motorbike · #8 (**permalink**) 10-21-2008, 11:47 AM

I'd be happy if I just get to 30...

velardejose · #9 (**permalink**) 10-21-2008, 11:57 AM

Hi
Remember it is a bicycle, designed for bicycle speeds
For reliable to and from work commuting I am using a 48 cc china girl (I am 220 lbs)
Mountain bike using cruise tires, front disk brake
Exhaust mod, tuned pipe alike, 36t rear sprocket
Just over a month w/o technical problems
It is more fun to cruise at low revs with no engine vibration
Peace
PD Hope to make the dual cable handle mod today

Pablo · #10 (**permalink**) 10-21-2008, 01:53 PM

Quote:

Originally Posted by conradcliff

Pablo: The only thing about those china engines that I'm worried about is dependability. I'm not sure I want to go that route.

What kind of speeds do you guys think I can achieve with one of Dax's 4 stroke titan kits? What do you guys think about that engine and would I be better off with a titan/different kit or a different engine/Dax kit?

Dependability is fine after you put a little bit into them. I've never been stranded. I think the simple little engines can be a lot more dependable than reputation!

DAX is good stuff from what I have seen, but I have no idea about speed with those.