MODEL AND SIZING GUIDE
BMC Speedmachine: where to start with sizing
A TT guide focused on the relationship between the frame and its adjustable contact points.
Everyday Bike Fit catalogue guide · prepared 2026-09-21 · Source dates shown per entry. Independent editorial review pending.
Identify the bike first
Retain the generation and product identifier, such as the identifier shown in the source URL. Do not deduce a model year from an identifier alone.
If the year is unknown, look for the model name, size sticker, wheel label and distinctive frame or brake details. Compare them to the source listing. Photographs can narrow a search; they cannot prove identity on their own. Leave the chart unconfirmed until its generation and wheel option match.
What our catalogue holds
4 entries: 1 with published body ranges and 3 with size labels only. No model year is stated in these entries. This is catalogue coverage, not a list of bikes currently in stock or every generation ever made.
Below are up to three entries with their own source information. Search the full catalogue for other variants and years. A source-check date is not a manufacture date, and the current source may have changed since that check.
BMC Speedmachine 01 ONE — Gen 1, 26a-000030
Model year not stated · Checked 2026-09-19 · Manufacturer source
The manufacturer leaves the smallest/largest height bands open-ended. These require confirmation. Use the exact pad-position chart, including tilt and spacers, before choosing a TT frame.
| Size | Rider height | Inside leg |
|---|---|---|
| S | < 174 | Not published |
| M | 172–185 | Not published |
| L | > 180 | Not published |
BMC Speedmachine 01 Four Time Trial Bike White/Carbon
Model year not stated · Checked 2026-09-20 · Retailer source
Published size options from the exact linked product. A retailer listing may not include every size originally produced. No rider-height ranges have been verified for this entry.
Published size labels: SM · MD · LG
No verified body ranges are held for this entry. These labels are not personal recommendations.
BMC Speedmachine 01 One Triathlon Bike Carbon/Dust Gold
Model year not stated · Checked 2026-09-20 · Retailer source
Published size options from the exact linked product. A retailer listing may not include every size originally produced. No rider-height ranges have been verified for this entry.
Published size labels: SM · MD · LG
No verified body ranges are held for this entry. These labels are not personal recommendations.
Before choosing a size
Check which pad positions are achievable with the actual extensions and spacers. A height shortlist cannot assess aerodynamics or event eligibility.
Measure height and inside leg twice, barefoot. Where both are published, keep each height and inside-leg pair together. Keep all overlapping sizes for comparison. If the measurements conflict, sit outside the chart or depend on an open-ended band, seek individual advice rather than extrapolating.
Frame stack and reach, when available, describe the frame and not the final hand position. A chart cannot account for every body proportion, component change or riding goal. Check the actual bike’s adjustment limits and arrange a try-out where possible.