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View Full Version : Best big bore kit?



swedish89
06-05-2008, 12:13 PM
I blew my polini one to bit as small end fell apart

Wich big bore kit to get?

i want the a very good performance one and one that will rev very high as have dont alot to motor.

Any help apriciated Dave

luigi1991
06-05-2008, 12:14 PM
the one that comes with new bearings and a crank would be nice!

swedish89
06-05-2008, 12:16 PM
the one that comes with new bearings and a crank would be nice!

botton end of the motor still mint stoped at the right time before it destroyed everything so still on the road but with standard kit.

luigi1991
06-05-2008, 12:19 PM
have u got a race crank in there?

swedish89
06-05-2008, 12:22 PM
have u got a race crank in there?

no im sure its just been modified

keeton.
06-05-2008, 12:31 PM
get the Polini 80cc kit there high reving

rs50 '03 steve
06-05-2008, 01:35 PM
molossi 80cc big bore are good.

Sududri134
06-05-2008, 07:29 PM
1. FOR SURE: Malossi
2. Polini
3. Metrakit
4. Hebo
5. Top Performance

But i'm sure many will disagree :)

Cause I'm just thinking of what kit will most likely bring you over the finish line first! ;)

swedish89
06-06-2008, 07:15 AM
1. FOR SURE: Malossi
2. Polini
3. Metrakit
4. Hebo
5. Top Performance

But i'm sure many will disagree :)

Cause I'm just thinking of what kit will most likely bring you over the finish line first! ;)

how do u know and what kits u you say the most well know names first and just asume their better

SpeedEng
06-10-2008, 06:31 AM
well I have not tryed any other bbk other than MK 72cc

but my 72cc kit has been great (over the stock cyl anything is better ;) )

gsaltus
06-10-2008, 08:57 AM
1. Polini
2. Malossi
3. Top Performance
4. Metrakit
5. Hebo

I would say polini is the better kit. I have tried all of them all execpt Hebo. Polini brings on the power more aggressively then Malossi. Top Performance has more kits to choose from and they perform close to malossi. Hebo is a company formed by a former employee at malossi. I've had other products from them (Reed Cage) was not impress with quality. Metrakit has potential, they require you to get the exhaust that bolts up instead of using the springs.

SpeedEng
06-10-2008, 09:26 AM
1. Polini
2. Malossi
3. Top Performance
4. Metrakit
5. Hebo

I would say polini is the better kit. I have tried all of them all execpt Hebo. Polini brings on the power more aggressively then Malossi. Top Performance has more kits to choose from and they perform close to malossi. Hebo is a company formed by a former employee at malossi. I've had other products from them (Reed Cage) was not impress with quality. Metrakit has potential, they require you to get the exhaust that bolts up instead of using the springs.

the MK 72cc handmade used the spring with the exhaust

nopainnogain
06-10-2008, 11:30 AM
ive got the metrakit street bbk and really rate it,it uses the standard exhaust mounting setup ie.springs.i believe their race bbk needs their own exhaust.just avoid the budget cylinders,these are just stock cylinders that have been bored out so the porting is standard.

luigi1991
06-10-2008, 11:43 AM
i had an mk 70 on the old bike and jonesy will vouch for it being fast!
i had an mk exhaust too,21mm carb and a 15t sprocket

swedish89
06-11-2008, 04:18 AM
1. Polini
2. Malossi
3. Top Performance
4. Metrakit
5. Hebo

I would say polini is the better kit. I have tried all of them all execpt Hebo. Polini brings on the power more aggressively then Malossi. Top Performance has more kits to choose from and they perform close to malossi. Hebo is a company formed by a former employee at malossi. I've had other products from them (Reed Cage) was not impress with quality. Metrakit has potential, they require you to get the exhaust that bolts up instead of using the springs.

What polini kit do you recomend? as i was very pleased with the performance of my old kit .

Thanks Dave

swedish89
06-11-2008, 04:35 AM
hi found this polini 80cc ALUMINIUM one http://www.adrenalin-pedstop.com/p/APRILIA-RS-50-PEUGEOT-XR6-YAMA-1774.aspx

Or is their any better ones or better prices

Thanks Dave