PX 125 Roadrunner v 3.0

[david]

Just finished andhad fun with the new version of my PX (now for track only) :exit the nitrous kit and the pinasco/Worb5 (crashed) and the half of the transmission also chewed......

so new engine menu:

PX125 Worb5 cranckcases
gruppo termico Quattrini M1X 172
reedvalve: mmw EM2+carburator dellorto vhsh 30+ Vforce3 reeds+ mikuni 13l pump
21X67 with primary reinforced DRT , clutch basket MMW+ kit 4 discs malossi
short 4th z37 DRT
cylinder studs and cruciform reinforced : DRT
vespatronic
Worb5 Special-lip 57mm cranckshaft...at least no fullcircle ,kept in box...
Exhaust RS-Performances Track-Series
....more
Malossi RS24 shockers
dunlop tt92gp
malossi front disc
and the F**** dropbar only for customshow and not for track (now making a new one based on a stock one)
....















loads of power.

[Knowledge]

That is quite a shopping basket.

Tell me more about the crank and the exhaust.

[markwh45]

nice parts very nice can you tell me what the part number is for the
mallossi clutch plates is please

[david]

the crank is super anticipated

this type of crank in 57mm


the exhaust is our RSPerf. track serie
wide brand of power
very powerful on a M1X... I afraid to have same feelings on accelerations as my 28 hp TS1

must put some weight in front of the Vespa (like Mauropapa has done with his) I think I'm going to put the tank like the PK to equilibrate a little more....it goes on wheeling very often....loose time on track....but try to find the best combination

for the malossi clutch kit 4 discs, this is the same one...
http://www.sip-scootershop.com/Products ... 200T5.aspx (for example)
I don't know about the 5 plates kit (surflex) on ebay.uk (seems to be good if well made)- tried carbon discs, and don't liked the feeling... cosa2 clutch (not good for the crank-even the S&S 16 springs also too heavy

[Adspeed]

Loving that...... right up my street!!

Wish ya paint/graphics man was closer to me I'd give him my work for sure......



PS didn't the PK have a different paintjob/graphics not so long ago.........

[sean brady scooters]

how has the crank been modified david............?

[david]

I have sent the crankcases to Andreas Wrobel, he did the job to adapt the EM2 then he reworked the crank to have the best flow.

[d2c]

Awesome build! luvin it