Cylinder Stage6 R/T 95 Derbi
Description
Stage6 R/T 95cc cylinder for Derbi after 2006
More displacement, more power: Stage6 R/T cylinder 95cc Big Bore Derbi Euro 3 / Euro 4, top-of-the-line high-end cylinder for maximum power.
Stage6 R/T cylinder - innovation and maximum performance
Based on the well-known, record-breaking 70cc cylinder, the 95cc version will get you even more power and offers plenty of potential for new record performances.
External stud bolts: As with the 70cc cylinder, the 95cc cylinder is also mounted with four external stud bolts. There are no bulges for the stud bolts, which otherwise run through the cylinder and affect the cross-section, so that the even larger ports can be done without any restriction.
Improved thermal properties: The thermals are excellent - the combustion chamber insert is bolted in five places, each bolted joint is cooled by its own cooling pocket. This way the critical points on the stud bolts, which often lead to piston jamming, are eliminated.
The cylinder is also less susceptible to defects due to thermal overloads, as the bore can expand evenly. This is extremely important, especially in tough racing conditions.
Big bore cylinder: In contrast to many other cylinders, Stage6 developed completely redesigned exhaust and transfer ports and thus offers a thoroughbred high-end big bore cylinder, not one that has not simply been bored out! In figures: 30 hp and more are quite feasible here, of course only in combination with the right setup.
Setup and installation Stage6 R/T cylinder
The 95 R/T kit is supplied with an exhaust flange that allows the installation of all standard Derbi exhausts.
We currently recommend the following Stage6 exhaust systems for maximum performance:
Both exhausts work well with the 95cc cylinder. So if you already have the 80-90 exhaust, there is no need to change to the 90-100 exhaust.
We recommend the following parts for the remaining configuration:
- Crankshaft Derbi Stage6 R/T stroke 44 and 95 mm connecting rod
- Crankshaft bearing Derbi Stage6 R/T
- Carburetor Stage6 R/T 34mm
- Internal rotor ignition Stage6 R/T by PVL Derbi
- 6-disc clutch Stage6 R/T Derbi
Fitting instructions S6 R/T 95 Derbi
To install the cylinder in the crankcase, the crankcase must be opened up a bit in order to fit the cylinder base. Detailed installation instructions are enclosed.
These are the required dimensions:
Cylinder base: D.58.4 mm (+0.1 mm), depth 10 mm
Piston passage: D.53.8 mm (+0.2/-0.1 mm), depth 21 mm (±0.2 mm)
Contents Stage6 R/T cylinder kit:
- Aluminum cylinder with hard chrome-plated bore, 6 transfer ports, bridged exhaust
- Piston 52mm / piston pin 14mm / extra-thin piston ring
- HC cylinder head, modular (orange anodized)
- R/T cylinder spacer for Derbi
- 1 exhaust flange
- Gaskets and small parts
- WITHOUT EXHAUST / STREET LEGAL
How to Install a cylinder on a scooter, motorcycle or moped
The cylinder or cylinder kit is the heart of the engine on scooters, motorcycles and mopeds. It consists of a cylinder, a piston with piston ring(s), a cylinder head and gaskets needed for installation.
The service life of a cylinder depends on whether it has been fitted correctly.

Tuning Level: High End racing
We categorize our products into different performance levels Original, Sport, Racing and High End , so that our customers can choose the right parts for their setup. It is really important to combine parts that belong to the same tuning level, this is especially true for cylinders, crankshafts and exhausts.
High End Racing products are exclusively designed for racing and should only be handled by tuning pros with the appropriate technical know-how. High-end racing parts often require modifications or machining of certain elements to accommodate the often larger components (larger crank webs, larger intake, etc.). Whether you stick with 50cc or increase the displacement, high-end racing parts offer much higher performance than the original parts and are the most powerful tuning parts.
Note: To ensure the reliability of the engine, it is important that the parts are compatible and that you do regular maintenance on your two-wheeler.
Aluminium cylinders
Aluminium cylinders are more powerful than cast iron cylinders, but require more regular maintenance and must be combined with different components such as a reinforced crankshaft and a larger carburetor.
How to run in an aluminium cylinder?
Aluminium cylinders should be run in for about 200 kilometers , and you should use a fully synthetic engine oil.
Note: To ensure optimum performance and reliability, it is advisable to measure the squish clearance. Just have a look at our tutorial How to adjust squish clearance.