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Kit 90cc high engine Ø50,5mm BIDALOT RACING FACTORY 90 WR (special race 44.90mm) DERBI euro 3
  • Kit 90cc high engine Ø50,5mm BIDALOT RACING FACTORY 90 WR (special race 44.90mm) DERBI euro 3

90cc high engine kit Ø50,5mm BIDALOT RACING FACTORY 90 WR (special 44.90mm race) DERBI euro 3 & 4

11000887

One of the most efficient high engine kit for DERBI Euro 3 and 4 !!! Ø50.5mm, in stroke 44.9mm therefore like the origin! A real couple monster.

€374.99
Quantity
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Description

Great novelty !!! Here is the new high engine BIDALOT RACING FACTORY 90 WR in diameter Ø50.5mm for mécaboite driving DERBI euro 3 and euro 4. Specially designed for competition in addition to the crankshaft stroke 44.90mm ref. 12100886.

 

Photo des joints moteur Ø50,5mm BIDALOT RACING FACTORY 90 WR (spécial course 44.90mm) DERBI euro 3

 

Entirely modeled in 3D CAD, the cylinder receives better cooling from all these transfer and exhaust cores, with constant thicknesses, able to guarantee optimized efficiency.

 

Photo de la culasse et du piston haut moteur Ø50,5mm BIDALOT RACING FACTORY 90 WR (spécial course 44.90mm) DERBI euro 3

 

Its piston is a high-end single segment racing model which will reduce friction and consequently increase high speeds. It is equipped with a thin segment in curved lapped chrome steel, its axis 13 X 40mm and reinforced clips, needle cage Ø13xØ17x17.5mm . Delivered 100% complete, you will have a complete seal pack with different thicknesses of base seals allowing you to fine-tune your squish settings.

 

Photo du cylindre 90cc haut moteur Ø50,5mm BIDALOT RACING FACTORY 90 WR (spécial course 44.90mm) DERBI euro 3

 

Another plus of this high engine has been made directly in the design of the cylinder which sees the addition of 4 fixing screws for the cylinder head stud. The cylinder is obviously in aluminum with always its specific treatment and nikasil coating.

 

Photo de l'échappement à barrette 90cc haut moteur Ø50,5mm BIDALOT RACING FACTORY 90 WR (spécial course 44.90mm) DERBI euro 3

 

The cylinder head , cut in the mass in aviation aluminum type 7075, is self-centered in the cylinder. The stud fits 3.4mm into the bore on this 90cm3 version.

 

Photo des transferts, diagrammes sur le kit 90cc haut moteur Ø50,5mm BIDALOT RACING FACTORY 90 WR derbi euro 3

 

The cover has an M10x1.00 tapping hole, allowing the connection of a temperature probe. A sealing plug is supplied as standard, in the absence of this probe.

 

Photo du kit 90cc haut moteur Ø50,5mm BIDALOT RACING FACTORY 90 WR (spécial course 44.90mm) DERBI euro 3

 

It is possible to upgrade this high engine to a 96cm3 version, using the Racing Factory Course 48.0mm crankshaft, a 4mm thick cylinder shim, and a specific cylinder head stud.

 

Photo du haut du cylindre 90cc haut moteur Ø50,5mm BIDALOT RACING FACTORY 90 WR (spécial course 44.90mm) DERBI euro 3

 

It is necessary to machine the casing for the passage of the piston, everything is delivered with a nice explanatory note and all the diagrams which will help you to do the job with precision.

 

Photo du haut moteur complet 90cc haut moteur Ø50,5mm BIDALOT RACING FACTORY 90 WR (spécial course 44.90mm) DERBI euro 3

 

The cutting play must be at 0.20mm minimum. The maximum height of the main duct is 159 ° at the exhaust and 190 ° at the boosters.

This kit has been developed with a BIDALOT Racing Factory 2015 exhaust , VFORCE 3i valves, a PWK 34 carburettor and a BIDALOT Racing Factory ignition (variable advance)

 

This pack contains :


Aluminum cylinder nikasil coating Ø50.5mm
7 transfers
Bar exhaust + Boosters
Combined with the 44.9mm stroke crankshaft, the exact displacement is 89.93cm3
Cylinder head stud, CNC, self-centered and entering 3.4mm in the cylinder, with high compression combustion chamber
Cylinder head cover Cut in the mass, black anodized
Racing Factory hypersilicon piston
New Profile 2016, elliptical, specific, to reduce running clearances
Segment Chrome steel Ø50.5x1, lapped convex, Japanese manufacture
Axle Ø13x40mm
Set of base gaskets in different thicknesses
Cylinder head O-ring set
4 cylinder studs L = 114mm
Needle cage Ø13xØ17x17.5mm
Various screws

Product Details
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