The Brute Force Of The Nimble Giant
Cycling industry giant “Giant” is taking the aero game to a new level with the 2015 Propel Advance SL2. Banking on their years of industry experience and lots of time in the wind tunnel, their Propel models for next year are now gunning for the market’s top titles of lightness and speed. While lots of manufacturers perform wind tunnel testing on their frames, Giant went to the expense and trouble of putting an articulated test dummy on their bikes during wind tunnel testing, not coincidentally modelled on ex-Rabobank rider Grischa Niermann. According to Giant, the articulated leg movement allowed them to more closely fine-tune the frame’s tube shapes to minimise turbulence and drag.
What is surprising is the claimed frame weight of 950 grams, astonishingly light for an aero frame. Giant got around the weight issue by treating the Propel frame as a completely integrated system. This includes using SpeedControl SLR mini-V linear pull brakes. Tucked out of the airflow behind the front fork and seat stays, these brakes were developed in conjunction with component wizards TRP, who are known for their innovative and light braking components. The oversized BB86 bottom bracket stiffens up the bottom end of the frame. The frame is also Di2 ready. All this ends up to a high end, high performance frame for the serious rider.
If you’re a strong rider looking to improve for 2015, and need a bike that will help shave those last tenths of a second off, take the Giant Propel SL2 for a (very fast) test ride.
Advanced SL-grade composite, Integrated seatpost, Electronic ready
Advanced SL-grade composite, Full-composite OverDrive 2 steerer
Shimano Ultegra 11×25, 11-speed
Shimano Ultegra, 36/52
Giant SpeedControl SL Ti
Advanced SL-grade composite
Contact SLR Aero
Contact SLR OverDrive 2
Giant P-SLR0 Aero WheelSystem 55mm
Giant P-SLR1, Front and rear specific
Sin Boon Seng, +604-468 6263