Welcome to the official rider height and frame sizing guide for the BMC Twostroke AL (Aluminium). Our clean matching chart scales manufacturer height recommendations across both imperial and metric systems, making it easy to identify the ideal frame fit for your height.
BMC Twostroke AL (Aluminium) Height Sizing Chart
| Frame Size | Rider Height (Imperial) | Rider Height (Metric) |
|---|---|---|
| S | 0″ – 5’7″ | 0 cm – 169 cm |
| M | 5’7″ – 6’0″ | 170 cm – 182 cm |
| L | 5’11” – 6’4″ | 180 cm – 192 cm |
| XL | 6’3″ – Any | 190 cm – 999 cm |
General Fit Tip: A well-fitting frame is the foundation of a comfortable ride. Adjustments to the saddle height, stem length, and handlebar angle can fine-tune the fit, but they cannot compensate for a frame that is fundamentally the wrong size.
What to Do if You Are Between BMC Sizes?
It is incredibly common to find your exact height overlapping between two different BMC Twostroke AL (Aluminium) frame dimensions. When this happens, your riding style and physical proportions should dictate your choice:
Choosing the smaller option gives you a shorter reach to the handlebars, creating a more upright riding position. Opting for the larger frame extends the wheelbase, delivering a highly stable ride at high speeds.
How to Measure Your Height for an Accurate Fit
To ensure the sizing data coordinates properly with the matrix above, avoid relying on your standard shoe size or an old doctor’s appointment estimate. Take a fresh measurement by removing your footwear, standing flat with your heels against a level baseboard, and ensuring your posture is entirely straight. Use a flat-edged object or book resting horizontally on your head to mark the point accurately against the wall before running a tape measure to the floor.
Calculate Your Size Instantly
Input your exact dimensions into our interactive calculation tool below to double-check your frame measurements and explore alternative brand frame shapes.
BMC Bike Size Calculator
Find the perfect frame size for your new BMC bike. Enter your height below to get a precise recommendation.