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Crankshaft Stage6 R/T MKII 90mm Conrod

Stage6 R/T Item no.: S6-7914091

Crankshaft Stage6 R/T MKII 90mm Conrod

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Data Sheet
Suitable for (24)


In collaboration with Massimo Tedeschi (2Fast) and the Italian racing team, Stage6 Development has completely redesigned the R/T crankshaft for specific usage with the R/T cylinder.

Special attention has been paid to better engine breathing and a better balancing of the crankshaft, which makes for a power increase of 0.5 hp and a slightly wider usable rev range.

* Power increase due to optimised balancing with light metal and tungsten inserts
* Better air flow due to the closed design of the crank webs
* High-quality connecting rod that has been forged and milled.
* Beefed-up 20mm variator shaft (included in the delivery is a fitting Viton® oil seal) that lowers surface speed and therefore reduces problems with overheating oil seals.
Attention: Crankshaft with 90mm conrod!

Data Sheet

Name Crankshaft Stage6 R/T MKII 90mm Conrod
Item No. S6-7914091
Brand Stage6 R/T
Product Line Hyper racing
RPM Range 0 - 20000 RPM
Stroke Original
Conrod Length 90 mm
Piston Pin Original
Material Tungsten
Bearing Ø original

Your product goes with the following manufacturers and their models:


Scarabeo 50cc AC (2005-2006) (Piaggio engine)


Quartz 50cc LC

Sfera 1st series 50cc AC (1991 - 1994)

Sfera NSL 50cc AC

Sfera RST 50cc AC

Vespa S 50cc 2-stroke AC

Zip 1st series 50cc AC (1991 - 1994)

Zip 2 50cc AC CAT (after 1999)

Zip 2 50cc AC as from 2009 (LBMC25E)

Zip 2 SP 50cc LC

Zip Base 50cc AC (after 1999)

Zip Base 50cc AC (before 1999)

Zip FastRider 50cc AC

Zip RST 50cc AC (1996-2000)

Zip SP 50cc LC

Zip SSL 25 (after 1999)

Zip SSL 25 (before 1999)


ET2 50cc AC ZAPC 16000

ET2 50cc AC after 2000 ZAPC38100

LX 50cc AC - 2-stroke

LXV 50cc 2-stroke AC

Primavera 50cc 2T AC after 13

S 50cc 2T AC after 07

Sprint 50cc 2T AC after 14

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