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Re: Fitting parmakit
Posted: Mon Dec 12, 2016 3:47 pm
by ducksta
Standard Px gearing with a 22 tooth Costa clutch 28mm delorto phbh 60 mm Mazz crank Parmakit suited for a 57 stroke ( hence the question) sip road 2 I have the parts just stuck on the packing side of it don't want piston smashing into the head.
Re: Fitting parmakit
Posted: Mon Dec 12, 2016 3:49 pm
by ducksta
Before you say it Cosa not Costa
Re: Fitting parmakit
Posted: Mon Dec 12, 2016 10:49 pm
by Muttley McLadd
Why such low gearing?
Re: Fitting parmakit
Posted: Tue Dec 13, 2016 6:57 pm
by ducksta
any suggestions
Re: Fitting parmakit
Posted: Tue Dec 13, 2016 8:00 pm
by Morgan
which 125 g/box ? an early one or late one?
Re: Fitting parmakit
Posted: Tue Dec 13, 2016 9:11 pm
by Muttley McLadd
ducksta wrote:any suggestions
Mine ran stock 200 gearing with the short fourth with one of those SIP boxes. Mine's a 60 mil crank version. With a RHS RZ pipe thing, runs the same gearing, and is much nicer to ride.
It has never felt over geared, even two up.
Re: Fitting parmakit
Posted: Wed Dec 14, 2016 8:17 pm
by ducksta
Morgan wrote:which 125 g/box ? an early one or late one?
Late mick
Re: Fitting parmakit
Posted: Wed Dec 14, 2016 8:50 pm
by Morgan
Names not Mick ?
The late gearbox will give you 5.2:1 (or thereabouts). Quite short gearing for a "Torquey" engine, the P2 gearbox is more like 4.7:1
Maybe a longer rod would be a consideration as well ?
Re: Fitting parmakit
Posted: Wed Dec 14, 2016 9:34 pm
by ducksta
Morgan wrote:Names not Mick ?
The late gearbox will give you 5.2:1 (or thereabouts). Quite short gearing for a "Torquey" engine, the P2 gearbox is more like 4.7:1
Maybe a longer rod would be a consideration as well ?
Whatever