BMC Fourstroke R 01 vs Santa Cruz Blur 4: geometry and fit comparison
Matched sizes, stack and reach deltas, and a fit check against your own body instead of guessing from two separate size charts.
The BMC Fourstroke R 01 is built as a cross-country geometry frame, the Santa Cruz Blur 4 as a cross-country geometry frame. The Santa Cruz Blur 4 cockpit is slightly shorter, by about 6 mm. Across matched sizes the BMC Fourstroke R 01 and Santa Cruz Blur 4 front ends are within a few millimetres of each other, so posture will depend more on cockpit setup than on the frame.
Switching from a BMC Fourstroke R 01?
Your closest Santa Cruz Blur 4 size, and what will still feel different about the position.
| You ride the BMC Fourstroke R 01 in | Take the Santa Cruz Blur 4 in | The position will feel |
|---|---|---|
| S | M | 3.6000000000000227 mm taller · 13 mm longer |
| M | M | 4.399999999999977 mm lower · 7 mm shorter |
| L | L | 3.1000000000000227 mm lower · 7 mm shorter |
| XL | XL | 4.2000000000000455 mm lower · 5 mm shorter |
Which one fits you better?
Run the same measurements through both frames. The likely size and the full fit report can differ more than the spec sheets suggest.
What BMC Fourstroke R 01 size fits you?
Get an instant frame estimate, then continue into the full fit report to check cockpit reach, bar drop, and setup risks before you buy.
No account needed for this check. The full report keeps this bike preselected.
What Santa Cruz Blur 4 size fits you?
Get an instant frame estimate, then continue into the full fit report to check cockpit reach, bar drop, and setup risks before you buy.
No account needed for this check. The full report keeps this bike preselected.
FAQ
Which has the taller front end: BMC Fourstroke R 01 or Santa Cruz Blur 4?
Across matched sizes the BMC Fourstroke R 01 and Santa Cruz Blur 4 front ends are within a few millimetres of each other, so posture will depend more on cockpit setup than on the frame.
Can the same rider take different sizes on these two bikes?
Yes, and it happens often: frame labels are not standardized. Use the matched-size table for geometry, then run the fit check below with your own measurements for each bike.
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