6-speed 50cc sport bike...looks super duper  fast but...:dunno:

a lil' 2-smoker

so is that thing full sized, or a mini?

if were a mini, or just smaller i suppose it would be cool, maybe like a pit bike

wonder what the specs are on it?  anyone know what it is?

Pretty sweet, here is the actual link to specs.

http://www.yamaha-motor-europe.com/products/gearbox_50cc/50cc/tzr.jsp

Maximum power 1.3kW @ 5,500rpm
Maximum torque 2.58Nm @ 5,500rpm


that can be converted to hp and lbs right?

Quote from: weaselnozeMaximum power 1.3kW @ 5,500rpm
Maximum torque 2.58Nm @ 5,500rpm


that can be converted to hp and lbs right?

I get 1.74 hp and 1.9 ft-pounds

:dunno:

Quote from: callmelenny

I get 1.74 hp and 1.9 ft-pounds

:dunno:

- alex

LOL!!!!!!!!!....that can't be right...

Quote from: callmelenny
I get 1.74 hp and 1.9 ft-pounds

:dunno:

That's what I get too... that can't be right...

trey

Looks like it weighs about 250 pounds...

My lawn mower has a 5hp 2 stroke ! :lol:  :lol:

This is a similar bike in cycle world Nov 2004

Its has 7 bhp at 8800 RPM
          4.3 ft. lbs  at 8400 RPM
          52mph top speed
          49mph
          244 lbs dry weight

Price tag of $4000.00 us

Sounds like a waste of money to me I could get a lot more bike for that price.

check it out  here  http://www.derbi.com/gpr50racing/default.htm

kinda like the Aprilla 50cc

but then, take the yamaha, shoe horn in a YZ80 engine and quiet the pipe down alittle and your good to go

Quote from: ericjmense52mph top speed

yea i do 52mph down my driveway.  and its 10 feet long  :lol:  :lol:

Quotebut then, take the yamaha, shoe horn in a YZ80 engine and quiet the pipe down alittle and your good to go

if your going to change motors why not go bigger with a 125 or better yet a 250? how nutty would that be, a 250cc race motor in a 244lb streetbike     now thats somthin i would buy

I believe that they make those Derbis with 250's but do not sell in the USA

the frame and swingarm might not be able to take the beating from the larger cc engines but then, who knows

bikes like these are popular in europe.  since they are 50cc or less, they are classified as scooters and can be ridden without a license.

I recall saying the same thing on another post... nice looking bike but I've seen bigger cans holding cheap beer at the 7/11...

Quote from: fettcolsI recall saying the same thing on another post... nice looking bike but I've seen bigger cans holding cheap beer at the 7/11...

You can buy beer at 7/11 down there? I wish.