Cylinder MALOSSI 4-Stroke Ø67 Pin Ø15 Derbi GPR 125 H2O 4T

Article information

DESCRIPTION
Technical features

Cylinder:

125 cc:
Bore: Ø 67 mm
Stroke: 47 mm
Displacement: 166cc

200 cc:
Bore: Ø 67 mm
Stroke: 58 mm
Displacement: 200cc

Compression ratio: 12:1
Material: primary aluminium alloy with a high content of hardened and tempered silicon, cylinder liner with silicon carbide coating in a galvanic nickel die and crossed smoothing with two diamond passages with very limited tolerances.
Machining: on machine tools with high precision numerical control.
Cylinder-piston connection with an allowance of 0.05 mm.
Recalculated and upgraded heat exchange surfaces.

Piston:

Ultra compact with 3 rings.
Material: special aluminium alloy with high silicon content, low thermal expansion and a tin facing on the sliding surfaces.
Machining on machine tools with numerical control.
Lightened and reinforced.
Upgraded heat exchange surfaces.

Piston rings:

Special rings with high sliding ease and very high mechanical resistance.
I° ring compression in nitrided and chromium steel.
II° special cast iron ring.
Three - piece scraper ring made of chromium-plated special steel alloy.

To be installed exclusively with Force Master 2.1 control unit 5519412 on:
-APRILIA SRS 125 ie 4T LC euro 5 2021->
-APRILIA RS GP Replica 125 ie 4T LC euro 5 2021->
-APRILIA RX 125 ie 4T LC euro 5 2021->
-APRILIA SX 125 ie 4T LC euro 5 2021-> (M546M)
-APRILIA TUONO 125 ie 4T LC euro 5 2021->

To be installed exclusively with Force Master 2.1 control unit 5519542 on:
-APRILIA RS4 125 ie 4T LC euro 3
-APRILIA SRS 125 ie 4T LC euro 4 2019->2020 (M545M)
-APRILIA RS GP Replica 125 ie 4T LC 4 2019->2020
-APRILIA RX 125 ie 4T LC euro 4 2019->2020
-APRILIASX 125 ie 4T LC euro 4 2018->2020 (M546M)
-APRILIA TUONO 125 ie 4T LC euro 4 2019->2020)
-DERBI Senda DRD 4V R - SM 125 ie 4T LC euro 3

To be installed exclusively with Force Master 2.1 control unit 5519437 on:
-ITALJET DRAGSTER 125 4T LC euro 5 2021-> (JC1P 58 MI-3)

To be installed exclusively with Force Master 2.1 control unit 5519720 on:
-ITALJET DRAGSTER 200 4T LC euro 5 2021-> (JC1P63ML-4B)

Products reserved exclusively for racing in specifically designed locations according to the provisions of the competent sporting authorities. We disclaim all liability for improper use