Light chassis reccommendation

Light chassis reccommendation

Author
Discussion

yazza54

Original Poster:

18,509 posts

181 months

Friday 28th May 2010
quotequote all
Hi,

I used to race karts and have a spare engine, it is a CR85 honda engine, tuned to within an inch of it's life producing around 32hp, fitted with fancy ceramic bearings, coated gears etc. I've had it for a while now since I went to 125 ICC and later stopped racing all together and it seems a waste that it's just sat there.

So I'd like to buy a chassis, less engine to put the motor in to make a real high revving lightweight bike. I'm not bothered about it only being an 85, the kart it was fitted to with me sat in it was about 155kg and it could rag me around like a doll and spin the wheels with ease.

So can anyone reccomend me a bike to look out for? Was thinking Mito, Rs125, anything else??

Thanks in advance!

srob

11,610 posts

238 months

Friday 28th May 2010
quotequote all
yazza54 said:
Hi,

I used to race karts and have a spare engine, it is a CR85 honda engine, tuned to within an inch of it's life producing around 32hp, fitted with fancy ceramic bearings, coated gears etc. I've had it for a while now since I went to 125 ICC and later stopped racing all together and it seems a waste that it's just sat there.

So I'd like to buy a chassis, less engine to put the motor in to make a real high revving lightweight bike. I'm not bothered about it only being an 85, the kart it was fitted to with me sat in it was about 155kg and it could rag me around like a doll and spin the wheels with ease.

So can anyone reccomend me a bike to look out for? Was thinking Mito, Rs125, anything else??

Thanks in advance!
Suzuki RG125
Yamaha TZR125
Honda NSR125
Gilera DNA or a scooter chassis might be a laugh too...!

Keep us posted, sounds like a great project smile

sprinter1050

11,550 posts

227 months

Friday 28th May 2010
quotequote all
I thought Mito's are supposed to be sweet handling good looking little things- I'd try it in one of them.
Or some sort of Derbi chassis ?

Lighter the better smile

srob

11,610 posts

238 months

Friday 28th May 2010
quotequote all
sprinter1050 said:
Or some sort of Derbi chassis ?

Lighter the better smile
Good call. Some of the little 50cc chassis' are pretty trick, so maybe something like an RS50/Cagive Prima with a 125 front end (for brakes!) grafted on?

yazza54

Original Poster:

18,509 posts

181 months

Friday 28th May 2010
quotequote all
Was going to mention the 50s as they'll be even lighter! But does light mean fragile?

Also.. I am about 6ft 2

Castrol Craig

18,073 posts

206 months

Friday 28th May 2010
quotequote all
depends on the budget.

you could start with a production frame, ideally a mito 125 or aprillia rs125 frame.

or you could go route number 2 and buy a ready made supersingle chassis, many people make them, the most popular being tigcraft, whatever you do dont use the frames of any of the production 50cc bikes as they are proper pants, with that sort of 'power' you would overload the chassis and it suspension quite easily.