2026 Factor MONZA Rapha Edition Shimano vs 2025 Basso SV Shimano Dura Ace
The Basso SV Shimano Dura Ace size closest to your 54 is the 51. Compare the 51 instead
What changes on the Basso SV Shimano Dura Ace
Compared with the Factor MONZA Rapha Edition Shimano in 54, the Basso SV Shimano Dura Ace in 45 places the top of the head tube 32 mm lower and 11 mm further back, relative to the bottom bracket. Its wheelbase is 14 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −32 mm
- Lower front end
- Frame reach
- −11 mm
- Shorter frame reach
- Wheelbase
- −14 mm
- Shorter: quicker to change direction
- Head angle
- −1.3°
- Slacker: calmer steering
- Chainstays
- n/a
- One of the bikes has no number for this
The two frames
Only the Factor MONZA Rapha Edition Shimano is drawn. The Basso SV Shimano Dura Ace numbers we have for size 45 are missing the chainstay length.
Geometry side by side
| Measurement | Factor MONZA Rapha Edition Shimano 54 | Basso SV Shimano Dura Ace 45 | Difference |
|---|---|---|---|
| Reach | 381 | 370 | −11 mm |
| Stack | 552 | 520 | −32 mm |
| Head tube angle | 72.5 | 71.2 | −1.3° |
| Seat tube angle | 74 | 75.5 | +1.5° |
| Chainstay length | 405 | not listed | |
| Wheelbase | 985 | 971 | −14 mm |
| BB drop | 70 | not listed | |
| Standover | 786 | 722 | −64 mm |
| Seat tube length | 498 | 420 | −78 mm |
| Effective top tube | not listed | 505 | |
| Head tube length | not listed | 115 |
Differences are the Basso SV Shimano Dura Ace minus the Factor MONZA Rapha Edition Shimano. Full charts: 2026 Factor MONZA Rapha Edition Shimano, 2025 Basso SV Shimano Dura Ace.
Where each sits in its class
Factor MONZA Rapha Edition ShimanoBasso SV Shimano Dura Ace
Each bike is ranked against the other road bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.
What each ships with
The stock build of each bike's first listed trim. Parts that match are dimmed.
| Part | Factor MONZA Rapha Edition ShimanoShimano Ultegra | Basso SV Shimano Dura AceShimano Dura Ace Di2 |
|---|---|---|
| Fork | Factor MONZA Wide Stance Fork | not listed |
| Wheelset | Black Inc Forty Five | DT Swiss ARC 1100 |
| Frame | not listed | Basso SV |
| Shifter | not listed | Shimano Dura-Ace R9270 |
| Derailleur | not listed | Shimano Dura-Ace R9250 |
| Cassette | not listed | Shimano Dura-Ace R9200 |
| Chain | not listed | Shimano Dura-Ace |
| Crankset | not listed | Shimano Dura-Ace R9200 |
| Chainring | not listed | Shimano 52, Shimano 36 |
| Bottom bracket | not listed | Shimano Dura-Ace R9200 |
| Tire | not listed | Continental Grand Prix 5000 |
| Brake | not listed | Shimano Dura-Ace R9270 |
| Rotor | not listed | Shimano Dura Ace Ice Rotor |
| Handlebar | not listed | Basso Fuga Integrated |
| Stem | not listed | Basso Fuga Integrated |
| Saddle | not listed | Selle Italia SLR Superflow |
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