Backfire E R750i
centurion
Crosscountry
Backfire E R750i is an alloy electric cross-country mountain bike (2024), from Centurion, part of the Backfire family. This model is best for a wide range of riders thanks to its fit flexibility, leaning toward a balanced riding position, with a surface profile that is best for smoother trails and efficient rolling. Based on the metrics, key strengths are good fit flexibility for dialing in rider position, balanced, versatile speed for everyday riding, and all-round climbing capability rather than a narrow specialty. At the same time, compared with more specialized alternatives, the compromise is battery range that is better for shorter daily use than long all-day outings. Compare this bike on MatchBikes.com to similar cross-country models.
Rating

Score Summary
Performance
Built for speed and efficiency
Fit
Dialed-in Fit & Comfort
Value
Battery
Specifications
General
Frame
Drivetrain
Wheels
Brakes
Cockpit
Seat
E-Bike Components
Geometry
| Measurement | XS | SM/MD | MD/LG | XL |
|---|---|---|---|---|
| Stack | 630 mm | 648 mm | 667 mm | 686 mm |
| Top Tube Length | 595 mm | 621 mm | 646 mm | 672 mm |
| Seat Tube Angle | 74 ° | 74 ° | 74 ° | 74 ° |
| Seat Tube Length | 400 mm | 450 mm | 500 mm | 550 mm |
| Head Tube Angle | 68.5 ° | 68.5 ° | 68.5 ° | 68.5 ° |
| Head Tube Length | 100 mm | 120 mm | 140 mm | 160 mm |
| Chainstay Length | 460 mm | 460 mm | 460 mm | 460 mm |
| Wheelbase | 1145 mm | 1173 mm | 1200 mm | 1228 mm |
| Wheels | 29" | 29" | 29" | 29" |




























































