Sub-9 Disc Tubular

Note: Production of the Zipp sub9 disc ended in June 2013. Zipp will continue to provide ongoing support for this product through our normal sales/service channels.

See the Zipp Super-9 as an alternative disc.

The Sub-9’s highlights so far include a pair of Ironman® 70.3 World Championships, a Tour de France® yellow jersey and some of the fastest Ironman®-distance bike splits ever recorded. We expected nothing less from the ultimate aerodynamic breakthrough.

In the center of the aero “sweet spot” – a wind angle of 12 to 18 degrees – the Zipp® Sub-9 was the first wheel ever to produce forward lift, when paired with our 21 mm Tangente tire. To achieve this feat, we added a toroidal bulge similar to our spoked rims around the edge of the disc to control airflow at the wheel’s leading and trailing edges. In addition to improving aero performance, the bulge’s vertical compliance keeps the Sub-9 glued to the road when cornering and yields a comfortable ride, hour after hour. This makes it the ideal choice for long-course triathletes to bounce out of Transition 2 for the run with fresh legs after a blistering bike split.

For decades, an obsession with aerodynamics has influenced everything from wheels to water bottles. But with the Sub-9 disc, we moved from minimizing drag to maximizing propulsion.

Available with Beyond Black or Classic White decals. 

Recommended and approved brake pads

Product note:

The Sub-9 may present some fitment issues for a small number of frames. The clearance between the chainstay and the rim may not be adequate to avoid contact between each other when ridden under load. We urge customers who plan on riding the Sub-9 to test the wheel within a frame under riding roads and conditions before purchasing. Clearance within individual frames of the same size, from the same manufacturer, may vary. Customers who run into this fitment issue may consider Zipp’s Super-9 or 900 discs as alternatives. Below is a list of known frames that may present this issue. This list will be updated if this fitment issue is discovered elsewhere. 

  • Cervelo® P3, P4
  • Ridley® Dean and Noah
  • Scott® Plasma
  • Giant® Trinity Alliance
  • Argon® 18E-114



Sub-9 Rear Tubular (Campagnolo):
$2,075 / €1,900

Sub-9 Rear Tubular (SRAM/Shimano):
$2,075 / €1,900

VCLC 1182
M2CM 1391
Max. Tire Pressure 285psi
Rim Used
Hole Count 529
Carbon Bridge 18
M2CM Radial
Max. Tire Pressure Yespsi
Hub Used
Shimano Compatible Yes
Weight Upgradeg
SRAM Compatible -
Alcoa 7xxx Forged 285
Campagnolo Compatible 188
Hole Count 653
Rear Wheel
Hub 24
Hub Used 188 disc hub
Weight 998g
Track Adaptable No
Dimpled Surface Yes
Ceramic Bearing Aftermarket
Max Width 28.5mm
MSRP USA ($) 2075
Part number - CA 00.1900.068.020
Part number - Shm 00.1900.068.000
Brake Track Width (center) 24.10mm
Weight Crossg
Shimano or Campy Radial
Shell No
Axle Yes
Alcoa 7xxx Forged Upgrade
Freehub Body -
Set Weight 998g
Max recommended rider weight (lbs) 275lbs
Brake Track Width (center) 24.10mm