2025 Factor Ostro VAM SRAM Power Meter vs 2024 Giant TCR Advanced Pro Disc
The XS is the Giant TCR Advanced Pro Disc size closest to your 45 Factor Ostro VAM SRAM Power Meter. We match frame stack and reach. This is a geometry comparison, not a fit recommendation; stem, spacers, handlebars and saddle setup also affect your riding position.
What changes on the Giant TCR Advanced Pro Disc
Compared with the Factor Ostro VAM SRAM Power Meter in 45, the Giant TCR Advanced Pro Disc in XS places the top of the head tube 15 mm higher and 16 mm further forward, relative to the bottom bracket. Its wheelbase is 6 mm longer, which can contribute to stability at speed.
- Frame stack
- +15 mm
- Higher front end
- Frame reach
- +16 mm
- Longer frame reach
- Wheelbase
- +6 mm
- Longer: steadier at speed
- Head angle
- −0.1°
- About the same head angle
- Chainstays
- ±0 mm
- About the same
The two frames
Factor Ostro VAM SRAM Power Meter, 45Giant TCR Advanced Pro Disc, XSDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Factor Ostro VAM SRAM Power Meter 45 | Giant TCR Advanced Pro Disc XS | Difference |
|---|---|---|---|
| Reach | 360 | 376 | +16 mm |
| Stack | 502 | 517 | +15 mm |
| Head tube angle | 71.1 | 71.0° | −0.1° |
| Seat tube angle | 75.5 | 74.5° | −1.0° |
| Chainstay length | 405 | 405 | ±0 mm |
| Wheelbase | 970 | 976 | +6 mm |
| BB drop | not listed | 72 | |
| Standover | not listed | 706 | |
| Seat tube length | not listed | 425 | |
| Head tube length | not listed | 120 |
Differences are the Giant TCR Advanced Pro Disc minus the Factor Ostro VAM SRAM Power Meter. Full charts: 2025 Factor Ostro VAM SRAM Power Meter, 2024 Giant TCR Advanced Pro Disc.
Where each sits in its class
Factor Ostro VAM SRAM Power MeterGiant TCR Advanced Pro Disc
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 Ostro VAM SRAM Power MeterSRAM Force w/ Power Meter | Giant TCR Advanced Pro Disc |
|---|---|---|
| Frame | Factor Ostro VAM | not listed |
| Fork | Factor OSTRO | not listed |
| Bottom bracket | CeramicSpeed T47A | not listed |
| Wheelset | Black Inc 48|58 | not listed |
| Brake | Disc brake 160mm max rotor | not listed |
| Handlebar | Black Inc Integrated Aero Barstem | not listed |
| Headset | CeramicSpeed SLT | not listed |
| Seatpost | Factor D-shaped carbon seatpost 0 and 20mm setback | not listed |
Know what is on every bike.
Add your bike to Quiver. Keep its parts, setup, and service history together, then share your build.
Explore the app
