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Cylinder Stage6 Racing MKII 70cc

Stage6 Item no.: S6-7416606

Cylinder Stage6 Racing MKII 70cc



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Data Sheet
Suitable for (46)


The successor of the popular Stage6 70cc Racing cylinder is called Stage6 Racing MKII 70cc. It has been completely revised and has 1hp more out of the box.

Re-designed aluminium cylinder with high-strength hardchrome coating. The former flat piston has been abandoned in favour of an R/T replica with 0.8mm ring and domed crown. The thermal stability has been improved in all areas. Generous flushing of the bridged exhaust port; pentagonal design and inner cooling fins; one-piece head with scavenging passages – to name but a few of the improvements.

With the right components, this cylinder yields 17–19 hp right out of the box. And there is still enough material left for everyone to do some own work and get more than 20hp out of this cylinder.
Attention: The temperature sensor must not be longer than 18mm (incl. thread), as it could otherwise knock against the cylinder head. Please check dimensions before mounting!

Data Sheet

Name Cylinder Stage6 Racing MKII 70cc
Item No. S6-7416606
Brand Stage6
Homologation No
Homologation No
Displacement 70cc
Stroke Original
Conrod Length Standard
Product Line Racing
Material Aluminium
Bore 47,6 mm
Piston Pin Original

Your product goes with the following manufacturers and their models:

Adly (Her Chee)

AirTech 50cc LC


Area 51 LC

Gulliver 50cc LC

Rally 50cc LC

SR 50cc LC (1994 - 1997) - Minarelli horiz.

SR 50cc Netscaper LC - Minarelli horiz.

SR 50cc Racing LC (before 2000) Minarelli

SR 50cc Stealth LC - Minarelli horiz.

Sonic 50cc LC


491 50cc RR LC (before 2003) - Minarelli horiz.

491 50cc RR Replica LC (before 2003) - Minarelli horiz.

491 50cc ST LC (before 2003) - Minarelli horiz.

491 50cc Sport LC (before 2003) - Minarelli horiz.

K2 50cc LC - Minarelli horiz.


Ark 50cc LC - Minarelli horiz.

Eikon 50cc LC - Minarelli horiz.


GTR 50cc LC - Minarelli horiz.


GSP 50cc LC


Dragster 50cc LC


Ark 50cc LC


Galactica 3.0 50cc LC


Speedjet 50 LC 2-stroke


MachG 50cc CAT LC (after 2003)

MachG 50cc LC (before 2003)

Nitro 50cc CAT LC (after 2003)

Nitro 50cc LC (after 1999)

Nitro 50cc LC (after 2013)

Nitro 50cc LC (before 1999)

Nitro Naked 50cc LC

Nitro Naked 50cc LC (after 2013)


F12 Phantom 50cc LC

F12 Phantom 50cc LC (after 2004)

F12 Phantom R 50cc LC

F15 Firefox 50cc LC

F15 Firefox 50cc LC (after 2004)


Crogen RS 50cc LC 2-stroke

Magnet RS 50cc LC 2-stroke


Speedjet RS 50cc LC


Aerox 50cc LC (after 1999)

Aerox 50cc LC (before 1999)

Aerox 50cc LC CAT (after 2003)

Aerox Naked 50cc LC (after 2013)

Aerox Naked 50cc LC CAT (after 2003)

Aerox R 50cc LC (after 2013)

Jog RR 50cc LC (before 2003)

Jog RR 50cc LC CAT (after 2003)

1 Review - Total Rating

Excellent cylinder - Review by Christos

I've been using it as a daily driver with a Stage6 HPC and 21mm carb. The performance is outstanding. It has higher compression ratio which results in high revving and overall POWER. It has endured misconfigured carburetor, running without air filter and drawing in dust, high temperatures (over 120C with broken water pump), WOT when cold and a broken conrod bearing where the cylinder remained intact (piston and head were destroyed, obviously), still using it. For a cylinder that aims at performance more than durability, it has lasted way more than I expected and still drives like new.

(Reviewd on 2/27/2017)


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