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Egig Performance Item number: EGIG220FAIO2
Egig Performance

Complete gearbox (gears incl. main shaft + auxiliary shaft) for Piaggio case -EGIG/FAIO X-TRA STRONG, CNC drive shaft - Vespa Smallframe V50, PV, ET3, PK, HP 4-speed- 18/37-15/38-12/42-11/52 - auxiliary shaft with poligon

Short facts - X-TRA STRONG gearbox

Plug-and-play in OEM small-frame housing (no machining)
Secondary shaft with polygon connection (for matching polygon couplings)
FAIO main shaft - CNC-machined, reinforced design
Tooth module 2 - high flank stability & load reserve
EGIG shifting claw 50.2 mm - precise shifting under load
>40 Nm capable - for very high-torque smallframe setups
1199,00 €*
Ready for dispatch in 24h
Shipping weight 3,5 kg
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FAIO RACING × EGIG PERFORMANCE - Gearbox X-TRA STRONG (Smallframe)

High-performance gearbox from the FAIO/EGIG development line. Plug-and-play installation in the original smallframe housing, designed for very high-torque engines. New in this version: auxiliary shaft with polygon connection for matching clutches and a reinforced, CNC-machined main shaft.

Plug-and-play in OEM housing Tooth module 2 Secondary shaft Polygon connection CNC-reinforced main shaft EGIG shift claw 50.2 mm >40 Nm suitable

Technical data X-TRA STRONG

Design: 4-speed gearbox, tooth module 2
Main shaft: FAIO, CNC-machined, reinforced design
Auxiliary shaft: Polygon connection to the matching clutch; M12×1.25 thread
Shift claw: EGIG specification 50.2 mm
Kickstarter pinion: 11 teeth
Design: high fatigue strength for >40 Nm

Use and compatibility

Installation without housing machining in original Piaggio Smallframe engines (PV/ET3/PK depending on setup)
Recommended in combination with clutches with polygon connection
Road, long distance and race track; clean shifting under load

Gear pairs and gear ratios

X-TRA STRONG
GearTooth pairi
1.11 : 524,73
2.13 : 423,23
3.15 : 382,53
4.18 : 372,06
Comparison - Piaggio PV (standard)
GearTooth pairi
1.10 : 585,80
2.14 : 543,86
3.18 : 502,53
4.22 : 462,09

Note: identical gear family as X-TRA S / X-TRA LARGE; X-TRA STRONG differs in width and shaft package (polygon secondary shaft, reinforced CNC main shaft).

FAQ - Frequently asked questions about the X-TRA STRONG

Yes. The package is designed for installation in original smallframe housings. The usual axial play/spacer checks are still required.
The positive-locking polygon connection transmits high torques without the notch effect of a classic keyway. In conjunction with suitable couplings, it increases the stability of the drivetrain.
CNC-manufactured, reinforced geometry with defined transition radii and higher bending/torsional strength. Designed for high continuous load, precise shifting and less wear.
The package is designed for very high-torque smallframe engines (typically >40 Nm). The module 2 gearing offers high flank stability and large load reserves.

Conclusion

Gearbox package for high durability without housing machining: Module 2 gearing, polygon auxiliary shaft and reinforced CNC main shaft result in a stable, precisely shiftable system for powerful smallframe setups.
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