- -20%
PEUGEOT 103
MBK 51
MOTOBECANE
PIAGGIO CIAO / VELOFAX
PEUGEOT FOX
HONDA CAMINO, PX, PXR...
DERBI VARIANT
SOLEX
PUCH
MINARELLI AM6
Low-pass exhaust pipe
High-pass exhaust pipe
DERBI Euro 3 / 4 / 5
DERBI Euro 1 & 2
MINARELLI P4 & P6
MINARELLI RV6, RV5, RV4, RV3
SUZUKI SMX, RMX, TSX
YAMAHA TY, RD, DT, MX
HONDA MB, MT, MTX, MBX, NSR R
YAMAHA CHAPPYBanner
Here are the famous valves BOYESEN competition. These valves are made for the 125cc machine equipped 2-stroke HONDA NSR F, NSR R, RS ....
It will allow an increase in power but also the couple! This is a patented double slat system, a thinner for low speeds and a thicker which kicks in (resonance) for high speeds! The fiberglass that is design the highest quality! Ideal to equip your unbridled and highly equipped machines. They come with instructions! 
Mounts on (BOYESEN list):
-Honda NSR 125 F / R
-Honda RS 125
Reference: LP.26.40
Set of 4 spare blades essential for the proper functioning of your admission ITALKIT Competition type double V Force roofs.
Reference: LC.26.40.1
A high performance valve box kit + straight intake manifold (90° angle) for your HONDA 125cc 2T motorcycles! Model with genuine high-end carbon slats.
Reference: LC.44.50
Valves with special high performance Karbonit slats at a very reasonable price!
Reference: LC.26.3
Valves with special high performance Karbonit slats at a very reasonable price!
Reference: BOY748
Ideal to equip your unbridled and highly equipped machines!
Reference: LC.19.40
Top-of-the-range competition valves Made In Italy with 0.28mm carbon slats, special high performance with gas channeling.
Reference: LP.01.125.1
Ideal for refurbishing your double V 8-slat valve box ITALKIT! High-end carbon fiber slats.
Reference: LC.34.60
Top-of-the-range competition valves Made In Italy with 0.28mm carbon slats, special high performance with gas channeling.
Reference: BOY715
To increase the power and the torque of your motorcycle!
Reference: LC.34.40
A high performance valve box + intake pipe kit for your KTM 150, 144 or 125cc 2T motorcycles! Model with genuine high-end carbon slats.
Reference: BOY666
Competition valves to obtain additional power gain!
Reference: LC.26.4
High-end valves with carbon blades, special high performance and competition.
Reference: BOY714
Ideal for increasing the power and torque of your motorcycle!
Reference: BOY603
An ideal way to gain torque and high revs on your 125cc motorcycle!
Reference: LP.01.1
High quality slats that increase performance at high speed but without neglecting the low rpm!
Reference: 27 7366.C0
MALOSSI Carbon Cutting Boards available in 0.30, 0.35 and 0.40mm. Top of the line. For manufacturing slats on a 2-stroke engine, thicknesses to choose from!