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Planet X


Our Aero Advantage


Competition Busting TT & Triathlon Bike

Stealth TT Bike

The Stealth has carried more cyclists through more seasons of competition than any other TT / Triathlon frame. The Stealth was the first TT-specific carbon frame to bring high-end aero performance to the masses and it's still going strong today

Years of development means the Stealth frame boasts a refined and assured ride. It has a slightly less extreme position than our Exocet TT bike, but still delivers incredible speed to a broad range of cyclists. Being positioned slightly higher is favoured by less flexible riders, as well as by Triathletes who need comfort for endurance, to minimise hip-flexor cramp for the run ahead.

With a wide range of groupsets available, your ultra-fast dream aero bike is here waiting for you. The Stealth is the perfect partner for TT and Triathlon success this season and beyond.


  • Stealth TT/Triathlon Bike
  • Proven Aero Performance
  • Toray T700 IM Carbon Fibre
  • Monocoque Construction Frame and Fork
  • Aero Wheel Options
  • Multiple Groupset Choices
View Range



Size & Specs

Bike frame geometry
AHead Angle (°)72.572.572.572.5
BHead Tube Length (mm)95100120130
CEffective Top Tube Horizontal (mm)510530550570
DSeat Angle (°)76767676
ESeat Tube Length Centre to Top (mm)480510540570
IStack (mm)497501510530
JReach (mm)386405420438


Planet X

Stealth range

From £999.99
Planet X Stealth SRAM Rival 22 TT/Tri Bike

Our legendary carbon framed Stealth is the ideal TT and Triathlon speed weapon.

  • Full carbon frame & forks
  • Stealth Carbon Bars
  • SRAM Rival 11 groupset
  • Vision Team 35 Comp, 11-speed clincher wheelset
  • Weight: circa 8.6kg, based on size medium

From £499.99
Planet X Stealth Pro Carbon Time Trial Frameset

Our legendary carbon Stealth frameset is the ideal TT and Triathlon speed weapon for shaving seconds off the clock and setting your new PB.

  • Full Toray T700 carbon frame
  • Three time '220' magazine Bike of the Year
  • As used by pro World Tour rider Cadel Evans
  • Weight: crica 1410g depending on size