vespa px 180 gearing solutions....

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shamrockexpress
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Sun Oct 28, 2018 8:41 pm

polini 180 kit is a p200 gearbox a good move running a 24 mm carb and a sip road????
or leave std 125 box and 150 cog clutch?
any thoughts appreciated.

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johnd
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Main scooter: 1970 Dl125
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Sun Nov 04, 2018 3:45 pm

I'm running an LML gearbox (p200 cogs, with 68 tooth primary) and a 22 tooth drive sprocket at the moment with a long stroke polini 187, 24 carb, sip road.
Lots of torque and it will easily pull another tooth on the clutch sprocket. Going 23/65 would depend on your weight and wether you ride two up or not.
Maybe p200 gears with a short fourth and 23/65 would be the way to go?

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Shaunbond
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Sun Nov 04, 2018 6:22 pm

I run a BGM 177 on LML reed cases, nothing special in terms of tuning with. BGM Touring exhaust and it runs 23/68 without issue. Loads of torque and smooth crusing.
Serial scooter rider...
VMSC Committed to Scootering for 25 years

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Muttley McLadd
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Sun Nov 04, 2018 8:30 pm

johnd wrote:
Sun Nov 04, 2018 3:45 pm

Maybe p200 gears with a short fourth and 23/65 would be the way to go?
This is what my Parmakit 190 runs. It'll pull it, with ease, two up, with either a box pipe or an expansion.
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