Description
Campagnolo 2015-18 Record Ultra Torque Carbon Chainset FC15-RE
The completely redesigned crankset represents increased rigidity as well as fresh and cutting edge aesthetics.
The new version uses a 4 arm spider design which makes for one single crankarm for all chainring options thanks to its unified bolt pattern.
Gone are the days of having a dedicated bolt pattern for standard chainrings and another for compact rings.
No longer will changing from traditional to compact, or vice versa, translate into the obligatory purchase of a completely new crankset.
The new bolt pattern allows for all 3 chainring standards 53/39, 52/36 and 50/34 to be built upon the same crankset.
Changing between compact and standard is now as easy as changing 8 bolts and two chainrings.
While the new 4-arm bolt pattern makes for a much more practical design that offers the cyclist a more versatile component, the Campy Tech Lab was dedicated primarily on increasing performance characteristics.
The new design incorporates a 8 bolt pattern with a spider arm design that not only holds the chainring in place by way of the bolt but also supports the chainring and in doing so, increases system rigidity.
In addition to completely redesigning the spider, Campagnolo engineers dedicated a great deal of energy towards a completely new crankarm that is a great deal stiffer than previous versions.
Add this new highly rigid crankarm to the new four-arm spider design and you have a complete crankset that not only excels at transferring power more than any previous version but one that is also more versatile with respect to gearing.
Hollow left hand arm
Steel hollow axle
USB bearings
615g
LIGHTNESS, RIGIDITY, SIMPLIFIED ASSEMBLY AND MAINTENANCE: ULTRA-TORQUE™.
THIS IS CAMPAGNOLO'S ANSWER IN THE INTEGRATED CRANKSET SECTOR.
AFTER MORE THAN 10 YEARS SINCE ITS INTRODUCTION THE ULTRA-TORQUE™ SYSTEM, IT IS STILL CONSIDERED, THE BEST PERFORMING CRANK-SET SPINDLE IN TERMS OF STIFFNESS, LOW WEIGHT AND EFFICIENCY OF POWER TRANSMISSION.
Campagnolo found a way to permanently conjoin the semi-axles of the bottom bracket to the respective crankset arms. This redesign made it possible to considerably reduce the lateral dimensions at the axle level and prevent annoying contact with the ankles when turning the pedals.
Assembly is simplistic: one single oversize bolt is enough to integrate the two semi-axles. With regard to torque transmission efficiency, this system is equally as effective as a single piece axle.
Furthermore, despite the narrow side profile, we have been able to position the bearings outside the bottom bracket shell, resulting in greater axle rigidity from the increased axle diameter. This breakthrough was obtained by using an ingenious mechanical system derived from many years' motoring experience in the rotation axle and engine shaft coupling sector: the Hirth joint.
In short , this is a joint with self-centring and self-aligning frontal teeth located in the middle of the bottom-bracket
axle where the ends of the semi-axles, integrated with the crankset arms, come into contact.
Campagnolo Codes :
FC15-RE093C 170mm 39/53 Carbon
FC15-RE293C 172.5mm 39/53 Carbon
FC15-RE240C 172.5mm 34/50 Carbon
FC15-RE540C 175mm 34/50 Carbon
FC15-RE593C 175mm 39/53 Carbon
FC15-RE562C 175mm 36/52 Carbon
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