The RDP3 is the evolution of RDP1. It’s a very reliable pneumatic/mechanical 3 positions dropper post.
It weighs 445g (125mm travel version, w/o remote lever) and it passes ISO requirements with excellence. This project was especially designed for Ritchey.
The remote lever is compatible with Sram MatchMaker and Shimano I-SPEC 2 systems.
On the 3rd Jewel seatpost generation my main priority has been to make an indestructible product, capable of working under extreme conditions, crash-proof and not easy to be damaged in case of abuse.
Oversized bolts and tube wall thickness were used, but thanks to the easy implementation of a pneumatic cylinder in the MCL system, the result was a very light adjustable seatpost.
On the handlebar, the lever has been replaced by a simple button. It can be positioned at convenience, facing up or downwards, close to the grip and it can be operated with a small thumb movement.
The previous models had a very neat cable routing to main tube, but it is now further improved with a rear access, enables a quick and easy plug and unplug to take out the seatpost, and facilitates the cable replacement and adjustment.
A triple guiding line based on square shaped linear guides system completely eliminates any radial/axial play. In addition this avoids radial flexion and guarantees a longer life than other brands guiding systems based on cylindrical pins or bearing balls.
MCL System was improved with low-friction polymers and a redesigned piston profile that achieves a smoother and silent activation, and a faster response.
On the 2nd generation I did an extensive redesign of the whole seatpost, based on the same concept but improving the MCL locking system.
I designed a new remote lever, minimalist and versatile, consisting of only two parts. The lever slides around the handlebar center, using the slotted clamp body as a rail. And the thumb moves naturally while hand keeps holding the handlebar firmly. Shamefully, the final products of the remote lever and saddle support were poorly manufactured by the subcontractor and didn’t meet the quality expectations.
The first Jewel Seatpost, it was the first implementation of the Magnetic Locking System (MCL), a system that allows an external but ergonomic cable routing without drills at the tube walls.
Finish in dark silver and white laser engraving; show off a unique and elegant style.
Awarded with an iF Product Design Award at Eurobike 2009.