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Planet X

Koichi San II

Track Cycling Legend

Overview

Planet X Koichi San II

Koichi San II Carbon Track Bike

Our fastest ever track bike, the Koichi San II has been wind tunnel tested and has proven itself to be worryingly fast- worrying if you're riding another bike! We've blended Advanced Aero Design with high-grade carbon fibre to ensure that every last watt of your power goes straight to the back wheel.

If you're serious about track cycling then you need a serious bike. Equipped with aero spoke front and disc rear wheels the Koichi San will help you slice through the air for the win. Designed for our sponsored pro riders the Koichi San II delivered an 11% reduction in drag in the wind tunnel compared to their previous Cervelo track bikes. The only question you have to ask yourself is how serious about winning are you?

 

  • Wind Tunnel Proven Performance
  • 11% Less Drag Than Most Popular Track Bike
  • Carbon Monocoque Frameset
  • Watt Sparing Design
  • Submitted For UCI Approval
  • Limited Production Run
View Range

Geometry

Geometry

Size & Specs

Bike frame geometry
  S/49cmM/51cmL/54cmXL/56cm
AHead Angle (degrees)72.572.572.572.5
B Head Tube (mm)8590105125
C Top Tube C-C Effective(mm)517536558574
D Seat Tube Angle (degrees)75.075.075.075.0
E Seat Tube C-T (mm)473477492512
F Chainstays (mm)380380380380
G BB Drop (mm)35353535
I Stack (mm no spacers)xxxx
J Reach (mm, no stem)xxxx
K Front Centre (mm)560579601618
L Fork Length (mm)368368368368
M Trail (mm)35353535
O Wheelbase (mm)932951974991
If you're unsure about the size you need, please call our customer services team to see if we can help +44 (0)1709 38 66 66

Planet X

Koichi San II range

Disc Wheeled Track Superstar

From £1,999.99
Planet X Koichi San II Elite Aero Carbon Track Bike Customisable Options
Planet X Koichi San II Elite Aero Carbon Track Bike

Wind tunnel tested and found to be faster than the Cervelo T4 the Koichi San 2 doesn't care what your preferred track event is, it has been designed to excel at them all, Sprint, Keirin, Madison, Points, Scratch or Omnium.

  • Handbuilt Toray T800+HM carbon
  • Micro-adjust, rear facing dropouts
  • Carbon rear disc and quin spoke front wheels
  • Weight: 2.95kg complete frameset

Performance Track Racing Frameset

From £999.99
Planet X Koichi San II Aero Carbon Track Frameset

Wind tunnel tested and found to be faster than the Cervelo T4 the Koichi San 2 doesn't care what your preferred track event is, it has been designed to excel at them all, Sprint, Keirin, Madison, Points, Scratch or Omnium.

  • Handbuilt Toray T800+HM carbon
  • Micro-adjust, rear facing dropouts
  • Supplied with forks and carbon seat post
  • Weight: 2.95kg complete frameset

From £799.99
Planet X Koichi San II Aero Carbon Track Frameset

Wind tunnel tested and found to be faster than the Cervelo T4 the Koichi San 2 doesn't care what your preferred track event is, it has been designed to excel at them all, Sprint, Keirin, Madison, Points, Scratch or Omnium.

  • Handbuilt Toray T800+HM carbon
  • Micro-adjust, rear facing dropouts
  • Supplied with forks and carbon seat post
  • Weight: 2.95kg complete frameset