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4MX Dual Steel Rear Sprocket Beta RR125 RR250 RR300 ‘2013-2020 – 48T

4MX Dual Steel Rear Sprocket Beta RR125 RR250 RR300 ‘2013-2020 – 48T

 57.50

Description

4MX Racing Dual Steel Rear Sprocket Beta
RR125 RR250 RR300 RR350 RR390 RR430 RR480
4MX Dual Steel/Aluminium sprockets are designed and tested at the highest level.
New dual ring design gives the ultimate sprocket performance, reduced weight thanks to a 7075-T6 aluminium centre and long lasting teeth life thanks to the high carbon steel outer.
Dual steel/aluminium sprockets also feature a hexagon drive interface between the inner and outer ring, this is revolutionary technology for sprockets and maximises drive between the two parts and reduces the force on the rivets to zero unlike the competition.  

Designed to outlast standard aluminum rear sprockets and is much lighter than steel rear sprockets
CNC 7075 Aerospace aluminium Inner ring
High Carbon Steel Outer Ring
Hex-Drive location between inner & outer ring
New style mud clearing grooves to reduce wear.
Rigid design increases torsional strength.
Alu Colour anodised for that factory bike look.

Kettenrad Stahl Couronne Bi-Metal staal aluminium achtertandwiel

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