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Stage6 R/T Cylinder Kit Big Bore 95cc Piaggio NRG / Runner

Stage6 R/T Item no.: S6-7514010

Stage6 R/T Cylinder Kit Big Bore 95cc Piaggio NRG / Runner

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Data Sheet
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The Stage6 R/T 95cc Cylinder Kit "Big Bore" Piaggio NRG / Runner, top of the line "Big Bore" kit by Stage6. The cylinder is based on the record-breaking Stage6 R/T 70cc, with higher displacement and more power.

The Stage6 R/T "Big Bore" 95cc series picks up the innovations already used in its little 70cc brother and by introducing a 52mm bore and piston for a 44mm stroke crankshaft gets at a displacement of 95cc. But Stage6 did not simply drill a bigger bore - transfer and exhaust ports were redesigned to create a genuine 95cc and not just a modified 70cc cylinder.

The kit includes:

  • Nikasil-plated Aluminium Cylinder with 6 transfer ports and bridged exhaust port
  • Piston, d=.52mm / piston pin=14 mm, with extra-thin piston ring
  • High-Compression Modular Cylinder Head (anodised orange)
  • R/T Cylinder Spacer
  • R/T Cylinder Spacer / Adapter Plate
  • Gaskets and screws/bolts for mounting

The special adapter plate bolts to the engine case, the cylinder is mounted via external bolts so that there are no bolts cutting through the cylinder; this new design opens up all kinds of options for tuners to modify and optimize their engine (porting) without being subject to the usual restrictions. A Viton O-ring seal between adapter plate and cylinder makes future readjustments unnecessary.

Regarding performance, the Stage6 R/T 95cc Cylinder Kit reaches 24 to 26hp and can easily be placed among the top high-end racing kits on the market. The thermal properties are excellent - the combustion chamber is bolted to the cylinder at five points, each coming with its own cooling pocket. These highly critical areas are thus stabilized and the risk of piston seizure is minimized. 

The exhaust flange is attached with 3 bolts. It is suitable for Stage6 R/T exhausts, other flange types are available.

Note: you'll have to mill in the crankcase to make room for the cylinder base (d = 58.4mm +/-0.1mm, 10mm deep), instructions included in manual.
This Stage R/T 95cc cylinder kit can only be combined with a Stage6 R/T 95cc exhaust.

  • 95cc displacement: diameter = 52mm / stroke = 44mm
  • For crankshafts with 44mm stroke / 90mm connecting rod / 14mm piston pin

Data Sheet

Name Stage6 R/T Cylinder Kit Big Bore 95cc Piaggio NRG / Runner
Item No. S6-7514010
Brand Stage6 R/T
Homologation No
Displacement 95cc
Stroke 44 mm
Conrod Length 90 mm
Product Line Hyper racing
Material Aluminium
Bore 52 mm
Piston Pin 14 mm

Your product goes with the following manufacturers and their models:


SR 50cc Funmaster LC (after 07/2003) - Piaggio engine

SR 50cc LC (after 07/2003) - Piaggio Engine

SR 50cc R Factory i.e. LC (after 2005) - Piaggio Engine

SR 50cc R LC (after 2005) - Piaggio Engine

SR 50cc Racing LC (after 07/2003) - Piaggio Engine

SR 50cc Sport LC (after 07/2003) - Piaggio Engine

SR 50cc Street LC (after 07/2003) - Moteur Piaggio


Atlantis 50cc LC (after 06/2002) - Piaggio

GP1 50cc LC - Piaggio

GP 1 Open 50cc

GP1 Racing / Revolution 50cc LC - Piaggio

GP 1 Racing 50cc

GP 1 Replica 50cc

GP 1 Revolution 50cc


DNA 50cc LC

Runner 50cc LC (1999 - 2000)

Runner 50cc LC (after 2004)

Runner 50cc LC (before 1999)

Runner 50cc LC CAT (after 2001)

Runner SP 50cc LC (after 08/2004)


NRG 50cc LC

NRG Power DD 50 (after 2005)

NRG mc2 50cc LC (after 1998)

NRG mc2 50cc LC (before 1998)

NRG mc2 DD 50cc LC (after 1998)

NRG mc2 Extreme 50cc LC

NRG mc3 DD 50cc LC CAT

NTT 50cc LC

Quartz 50cc LC

Zip 2 SP 50cc LC

Zip SP 50cc LC

1 Product Review

Very Good - Review by Nithirut

Very Good Product

(Reviewed on 3/3/2017)


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