fit

This page is a dynamic tool that will show you the stack/reach of Alpha One on YOUR particular bike. This Guide can help you replicate your current bike position on Alpha One, or set up a new bike with Alpha One based on numbers from a bike fitter. This Guide contains a database of the stack/reach numbers for most modern triathlon bicycle frames, as well as the actual stack/reach numbers for Alpha One. The Guide combines these numbers to produce a chart of actual X/Y coordinates of your pads measured from the bottom bracket. This coordinate is the most important number that bike fitters use to determine your position on a triathlon bike. The steps below provide an easy-to-follow system for making sure you have the perfect fit with Alpha One aerobar.







Step 1: Determine your current fit numbers Show instructions »

Step 2: Select your bike

Use the form below to pick your bike model. If your bike isn't in the list, you can input the frame geometry directly in the "Stack" and "Reach" fields. If you leave these blank, the fit chart will show the stack/reach information for Alpha One alone.

Brand:

Model:

Size:

Stack:     Reach:

Step 3: Find your position on the chart Show instructions »

Stack
(BB to Top of Pad)
 
175mm Monopost: 8,
Stem Spacer: 40mm
       
170mm Monopost: 7.5,
Stem Spacer: 40mm
       
165mm Monopost: 7,
Stem Spacer: 40mm
Monopost: 8,
Stem Spacer: 30mm
     
160mm Monopost: 6.5,
Stem Spacer: 40mm
Monopost: 7.5,
Stem Spacer: 30mm
     
155mm Monopost: 6,
Stem Spacer: 40mm
Monopost: 7,
Stem Spacer: 30mm
Monopost: 8,
Stem Spacer: 20mm
   
150mm Monopost: 5.5,
Stem Spacer: 40mm
Monopost: 6.5,
Stem Spacer: 30mm
Monopost: 7.5,
Stem Spacer: 20mm
   
145mm Monopost: 5,
Stem Spacer: 40mm
Monopost: 6,
Stem Spacer: 30mm
Monopost: 7,
Stem Spacer: 20mm
Monopost: 8,
Stem Spacer: 10mm
 
140mm Monopost: 4.5,
Stem Spacer: 40mm
Monopost: 5.5,
Stem Spacer: 30mm
Monopost: 6.5,
Stem Spacer: 20mm
Monopost: 7.5,
Stem Spacer: 10mm
 
135mm Monopost: 4,
Stem Spacer: 40mm
Monopost: 5,
Stem Spacer: 30mm
Monopost: 6,
Stem Spacer: 20mm
Monopost: 7,
Stem Spacer: 10mm
Monopost: 8,
Stem Spacer: none
130mm Monopost: 3.5,
Stem Spacer: 40mm
Monopost: 4.5,
Stem Spacer: 30mm
Monopost: 5.5,
Stem Spacer: 20mm
Monopost: 6.5,
Stem Spacer: 10mm
Monopost: 7.5,
Stem Spacer: none
125mm Monopost: 3,
Stem Spacer: 40mm
Monopost: 4,
Stem Spacer: 30mm
Monopost: 5,
Stem Spacer: 20mm
Monopost: 6,
Stem Spacer: 10mm
Monopost: 7,
Stem Spacer: none
120mm Monopost: 2.5,
Stem Spacer: 40mm
Monopost: 3.5,
Stem Spacer: 30mm
Monopost: 4.5,
Stem Spacer: 20mm
Monopost: 5.5,
Stem Spacer: 10mm
Monopost: 6.5,
Stem Spacer: none
115mm Monopost: 2,
Stem Spacer: 40mm
Monopost: 3,
Stem Spacer: 30mm
Monopost: 4,
Stem Spacer: 20mm
Monopost: 5,
Stem Spacer: 10mm
Monopost: 6,
Stem Spacer: none
110mm Monopost: 1.5,
Stem Spacer: 40mm
Monopost: 2.5,
Stem Spacer: 30mm
Monopost: 3.5,
Stem Spacer: 20mm
Monopost: 4.5,
Stem Spacer: 10mm
Monopost: 5.5,
Stem Spacer: none
105mm Monopost: 1,
Stem Spacer: 40mm
Monopost: 2,
Stem Spacer: 30mm
Monopost: 3,
Stem Spacer: 20mm
Monopost: 4,
Stem Spacer: 10mm
Monopost: 5,
Stem Spacer: none
100mm Monopost: 0.5,
Stem Spacer: 40mm
Monopost: 1.5,
Stem Spacer: 30mm
Monopost: 2.5,
Stem Spacer: 20mm
Monopost: 3.5,
Stem Spacer: 10mm
Monopost: 4.5,
Stem Spacer: none
95mm Monopost: 0,
Stem Spacer: 40mm
Monopost: 1,
Stem Spacer: 30mm
Monopost: 2,
Stem Spacer: 20mm
Monopost: 3,
Stem Spacer: 10mm
Monopost: 4,
Stem Spacer: none
90mm   Monopost: 0.5,
Stem Spacer: 30mm
Monopost: 1.5,
Stem Spacer: 20mm
Monopost: 2.5,
Stem Spacer: 10mm
Monopost: 3.5,
Stem Spacer: none
85mm   Monopost: 0,
Stem Spacer: 30mm
Monopost: 1,
Stem Spacer: 20mm
Monopost: 2,
Stem Spacer: 10mm
Monopost: 3,
Stem Spacer: none
80mm     Monopost: 0.5,
Stem Spacer: 20mm
Monopost: 1.5,
Stem Spacer: 10mm
Monopost: 2.5,
Stem Spacer: none
75mm     Monopost: 0,
Stem Spacer: 20mm
Monopost: 1,
Stem Spacer: 10mm
Monopost: 2,
Stem Spacer: none
70mm       Monopost: 0.5,
Stem Spacer: 10mm
Monopost: 1.5,
Stem Spacer: none
65mm       Monopost: 0,
Stem Spacer: 10mm
Monopost: 1,
Stem Spacer: none
60mm         Monopost: 0.5,
Stem Spacer: none
55mm         Monopost: 0,
Stem Spacer: none
  Reach (BB to Pad Center)
Pads: +20mm » 108mm 111mm 114mm 117mm 120mm
Pads at Center » 88mm 91mm 94mm 97mm 100mm
Pads: -20mm » 68mm 71mm 74mm 77mm 80mm













  Blue Cells » Standard hardware, extensions above bar. Geometry includes integrated BTA mount.
  Green Cells » Undermount hardware, extensions below bar. Geometry excludes integrated BTA mount.