Zipp will add yet another tool in its already well-stocked aero chest with the introduction of the new Super-9 rear disc wheel for 2010. In contrast to the bulging multi-profile Sub-9, the Super-9 is essentially pan flat, measuring a still-thick 27.5mm wide throughout before smoothly stepping down to 23mm at the tubular tire bed.
According to Zipp marketing manager Andy Paskins, the Super-9’s extra thickness makes it nearly as aero as the Sub-9 but offers a stiffer and more responsive ride that is better suited to shorter and more intense courses where comfort is less of a priority. In addition, the narrower width will address the fitment issues that cropped up with the Sub-9 on some frames such as the Cervélo P4 and S3.
Claimed weight is just 995g – 3g lighter than the Sub-9.
Zipp claims its new super-9 disc wheel is virtually as aero as its sub-9 but its flat 27mm-wide profile is more likely to fit in certain frames and delivers a stiffer ride.: zipp claims its new super-9 disc wheel is virtually as aero as its sub-9 but its flat 27mm-wide profile is more likely to fit in certain frames and delivers a stiffer ride. James Huang/BikeRadar.com
Zipp’s new Super-9 disk
At the other end of the spectrum, Zipp has replaced its long running Team Issue aluminium clincher wheelset with the 101 – essentially an aluminium version of the shallow-section carbon fibre 202. Indeed, the 101 rim wears a similar full toroidal cross-section measuring 30mm deep and 24.5mm wide that Zipp claims is nearly indistinguishable in the wind tunnel but in a package that is far more affordable and easier to live with on a day-to-day basis.
Zipp has also upgraded the hubs on the 101 from the Team Issue to its latest 88/188 set with wider and taller spoke flanges, easily adjustable bearing preload and rattle-free anodised aluminium end caps. Sapim bladed stainless steel spokes (18 front, 20 rear) join everything together and claimed weight is just 1,485g per pair.
The new zipp rzr bar-end shifters feature sram’s return-to-center internals so the aero-shaped levers are always pointed straight ahead for optimal aerodynamics.: the new zipp rzr bar-end shifters feature sram’s return-to-center internals so the aero-shaped levers are always pointed straight ahead for optimal aerodynamics. James Huang/BikeRadar.com
Zipp’s RZR shifters
2010 will also see the debut of Zipp’s new RZR shifter, essentially the mechanical equivalent of SRAM’s 1090-R2C bar end changer but with a more bulbous carbon fibre lever that we first saw on Lance Armstrong’s Astana team issue Trek Equinox TTX SSL at this year’s Giro d’Italia. Zipp claims the new shape offers a six-second advantage over 40km relative to the flat R2C lever.
As with the R2C, the RZR lever returns to the forward-pointing position after each shift to minimize drag and since it’s mechanically identically, the RZR is also compatible with Zipp’s weight saving VukaShift extensions.
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