2019 Merida BIG.SEVEN 20-D vs 2017 Trek Superfly Women's
The M is the Trek Superfly Women's size closest to your L Merida BIG.SEVEN 20-D. 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 Trek Superfly Women's
Compared with the Merida BIG.SEVEN 20-D in L, the Trek Superfly Women's in M places the top of the head tube 19 mm lower and 16 mm further forward, relative to the bottom bracket. Its wheelbase is 35 mm longer, which can contribute to stability at speed.
- Frame stack
- −19 mm
- Lower front end
- Frame reach
- +16 mm
- Longer frame reach
- Wheelbase
- +35 mm
- Longer: steadier at speed
- Head angle
- −1.2°
- Slacker: calmer steering
- Chainstays
- +5 mm
- Longer: more planted
The two frames
Only the Merida BIG.SEVEN 20-D is drawn. The Trek Superfly Women's numbers we have for size M are missing the seat angle.
Geometry side by side
| Measurement | Merida BIG.SEVEN 20-D L | Trek Superfly Women's M | Difference |
|---|---|---|---|
| Reach | 396 | 412 | +16 mm |
| Stack | 619 | 600 | −19 mm |
| Head tube angle | 70.5 | 69.3° | −1.2° |
| Seat tube angle | 73 | not listed | |
| Effective top tube | 585 | 602 | +17 mm |
| Chainstay length | 430 | 435 | +5 mm |
| Wheelbase | 1068 | 1103 | +35 mm |
| BB drop | 53 | 58 | +5 mm |
| Standover | 764 | 765 | +1 mm |
| Seat tube length | 470 | 419 | −51 mm |
| Fork length | 490 | not listed | |
| Head tube length | 125 | 100 | −25 mm |
| BB height | not listed | 311 |
Differences are the Trek Superfly Women's minus the Merida BIG.SEVEN 20-D. Full charts: 2019 Merida BIG.SEVEN 20-D, 2017 Trek Superfly Women's.
Where each sits in its class
Merida BIG.SEVEN 20-DTrek Superfly Women's
Each bike is ranked against the other XC 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 | Merida BIG.SEVEN 20-D20-D | Trek Superfly Women's6 Women's |
|---|---|---|
| Frame | Merida BIG.SEVEN SPEED | Trek Alpha Platinum |
| Fork | SR Suntour XCM-HLO | RockShox Reba RL |
| Shifter | Shimano ST-EF505 | SRAM GX |
| Derailleur | Shimano FD-TY700, Shimano Acera M360 | SRAM GX |
| Cassette | SunRace CSM668 | SRAM PG 1130 |
| Chain | KMC M700 | SRAM 1110 |
| Bottom bracket | FSA TH-7420ST-W | Trek PF89.5 |
| Tire | Merida K1080 | Bontrager XR1 Expert |
| Hub | Shimano TX505 | not listed |
| Rim | Merida CC | Bontrager Mustang Elite |
| Brake | Shimano ST-EF505 | SRAM Level T |
| Rotor | Shimano SM-RT10 | not listed |
| Handlebar | Merida CC | not listed |
| Stem | Merida CC | not listed |
| Grips | Merida EC | not listed |
| Headset | FSA NO.10P Neck15 | not listed |
| Seatpost | Merida CC | not listed |
| Crankset | not listed | SRAM GX-1000 |
| Saddle | not listed | Bontrager Ajna Comp WSD |
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