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A super powerful kit, clearly above all the other 50cc!!
Here is the latest high engine, RF50WR, in adaptable version, for DERBI E3 engine (D50B0). The best 50cc kit on the market, it will clearly not have the torque of an 80cc, but in terms of power, we are on high level equipment! Target power rpm: from 11,500 to 14,000 rpm!
Adaptable means that this high engine can be substituted directly for the original model. Unlike the Racing version, it does not require a special crankshaft, and is designed to be fitted with a racing crankshaft and connecting rod length identical to the original.
On the other hand, its heights of distributions, and the compression ratio, have been reduced, compared to the Racing version. Thus, it will be less sensitive to the various settings, and especially to the peripherals used.
For ALLDAYS use, we highly recommend this adaptable model!
Entirely modeled in 3D CAD, the cylinder sees its water chamber go around all the transfer and exhaust cores, with constant thicknesses, able to guarantee great dimensional stability of the cylinder, due to optimized cooling.
The cylinder head, heat-treated, is also equipped with a water chamber, surrounding the combustion chamber, for good heat dissipation and perfect cooling. It is self centered in the cylinder, and fits 1.1mm into the bore on this version.
The fixing of the specific exhaust flange is ensured by 4 screws. However, it is possible to mount a fixing flange with 2 holes, with a center distance of 48mm.
You will find, sold as accessories, exhaust flanges of different sizes, allowing the adaptation of almost all exhausts on the market. These flanges are available in the following dimensions:
Ø28mm x L30mm
Ø30mm x L30mm
Ø32mm x L30mm
Technically, this thermal group is composed of:
High engine RF50WR Adaptable DERBI E3:
Aluminum cylinder, with heat treatment, nikasil coating Ø40mm
Aluminum cylinder head, with heat treatment, self-centering and re-entering 1.1mm in the cylinder, with high compression combustion chamber
5 transfers
Booster Exhaust
RF50WR hypersilicon piston Ø40mm
Set of base gaskets of different thicknesses
New Profile 2018, elliptical, specific, to reduce operating clearances
22mm axle height
Segment Chromed steel Ø40x1, domed lapped, made in Japan
Shaft Ø12x33mm
Set of cylinder head O-rings
4 cylinder studs
Miscellaneous screws
Reference: X4 12512042
Reinforced and elongated nuts to better tighten the cylinder head and more precisely. They can withstand much higher tightening torques!
Reference: 11210042
BIDALOT spare cylinder head stud for 50cc Racing Replica kit!
Reference: 11333042...
High-end BIDALOT cast piston for 50cc kit.
Reference: 83004525
The most upscale of Viton O-ring.
Reference: 83002202
High quality BIDALOT O-ring for cylinder head stud against cylinder head cover.
Reference: 83006502
O-ring ideal for refurbishing the engine sealing of your mécaboite after disassembly / reassembly.
Reference: 83011453
Ideal after a loss or wear! Very good quality O-ring for cylinder head surround.
Reference: 12511052
High-end reinforced and treated studs for DERBI Euro 3 and 4.
Reference: 11220056
Ideal in case of breakage or veiling for a perfect refurbishment.
Reference: 11502056
Ideal for making your squish and getting a perfect seal!
Reference: 11500056
Ideal for refurbishing the engine sealing of your DERBI euro 3 and 4.
Reference: 472591
Here is a kit much cheaper than the original but of excellent quality!
Reference: 482038
The cheapest original type kit on the market with good quality and finish.
Reference: 030312
One of the cheapest kits on the market. Ideal for repairing your euro 3 at a lower cost.
Reference: 480588
A very good 50cc kit which will bring you great performance as well as excellent reliability. Surely one of the best value for money on the market.
Reference: 010841399
A kit more powerful than the origin with a very good solidity.
Reference: 504638
The latest from DOPPLER, the high cast iron engine which brings a very good performance gain on DERBI euro 3 and 4 while preserving the strength and the legal displacement of 50cc.
Reference: 010840399
A kit much more efficient than the original while keeping a very good solidity.
Reference: 109.0018
The famous POLINI cast iron 50cc for 50cc motorcycles with DERBI engine from 2006!
Reference: 558
A very good quality kit that will offer excellent solidity and all this at a low price!
Reference: 23168.00
One of the most powerful kits on the market in 50cc therefore approved on the road!
Reference: 3112981
The famous MALOSSI MHR TEAM for DERBI EURO 3 and 4 engine!
Reference: 129.0596/GT
Already available with us, the very latest from FURYTECH! More powerful, more torquey, ...
Reference: 032061
A high-performance kit, solid, clean and delivered with a stud bolt!
Reference: 466945
A very good quality kit that will offer excellent strength and all this at a low price!
Reference: 031000L
A very good little cast iron kit with exhaust boosters for DERBI euro 3 and euro 4, legal displacement respected, increased performance and lower price!
Reference: 034000
The latest cast iron from CARENZI, the high cast iron engine which brings a very good performance gain on DERBI euro 3 and 4 while preserving the solidity and the legal displacement of 50cc.
A super powerful kit, clearly above all the other 50cc!!
