Banner
A reliable and efficient kit in 70cc for derbi Euro 3, euro 4 and euro 5!
Here is our latest high engine, RF70WR, for DERBI E3 engine (D50B0).
This high engine is designed to be fitted with a racing crankshaft and connecting rod length identical to the original. However, due to its very high performance, we recommend fitting our Racing Factory crankshaft.
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-centering in the cylinder, and fits 2.4mm 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 RF70WR Adaptable DERBI E3:
Cylinder Aluminum, with heat treatment, nikasil coating Ø 47.6mm
Aluminum cylinder head, with heat treatment, self-centering and re-entering 2.4mm in the cylinder, with high compression combustion chamberRF50WR hypersilicon piston Ø 47.6mm
7 transfers
Booster Exhaust
New Profile 2018, elliptical, specific, to reduce operating clearances
25mm axle height
Segment Chromed steel Ø47.6x1, domed lapped, made in Japan
Piston pin Ø12x39mm
Set of base gaskets of different thicknesses
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: 83005302
BIDALOT cylinder head O-ring in viton.
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: 11500078
Attached pack provided for your BIDALOT kit!
Reference: P400105100007
A high performance high-performance engine, diameter 50mm, 80cc, complete ...
Reference: EQ-749
The 70cc RACING version of BARIKIT, with exhaust with boosters and high diagrams! More powerful, but don't neglect the torque!
Reference: 01085950
A torquey and solid kit. This kit is often used as a basis for engine preparation for its build quality.
Reference: 01084350
A kit with great performance and good strength and all this at a reduced price.
Reference: 3112988
The famous MHR TEAM 80cc for Derbi Euro 3 and 4, standard race and original size transfers of course ... But what power! What a couple and what solidity !! One of the best normal races on the market!
Reference: CK.12.786.G
High-end aluminum cylinder with 6 transfers, VERTEX single segment piston, large exhaust with boosters and cylinder head with high compression stud. A real concentrate of performance.
Reference: CI.12.786.G
High-end aluminum cylinder with 6 transfers, single-segment VERTEX piston, large booster exhaust. A real concentrate of performance.
Reference: 01084248
A low-cost kit that does not neglect quality!
Reference: 3112985
The famous MHR REPLICA 80cc bi-segment for DERBI, standard race, extraordinarily torquey and solid !! One of the best in normal racing on the market!
Reference: 23172.00
The biggest high engine kit for DERBI Euro 3 and 4 !!! Ø55mm, in 40mm stroke so like the origin! A real couple monster.
Reference: H01089347
A kit a little more powerful than the original while maintaining excellent reliability for a totally ridiculous price.
Reference: EQ-1031-S
The racing version of the 80cc Ø50mm BARIKIT BRK. Mono-segment.
Reference: EQ-990-S
The racing version of the 80cc Ø50mm BARIKIT. Mono-segment with stud cylinder head.
Reference: 010810050
The all new kit from AIRSAL which develops 20 hp minimum!
Reference: EQ-957-S
The racing version of the 80cc Ø50mm BARIKIT. Bi-segments with stud cylinder head.
Reference: CK.12.770.G1
High-end aluminum cylinder with 6 transfers, VERTEX single segment piston, large exhaust with boosters and cylinder head with high compression stud. A real concentrate of performance.
A reliable and efficient kit in 70cc for derbi Euro 3, euro 4 and euro 5!
