The Bike Fit is Critical
One of the unique services John Sheehan and Gerard Cycles has come to be known for is providing the right fit for our customers and their individual riding styles. To get a great fit on your new Gerard Cycles bike you can:
- Use the Frame Sizer and frame- and component-sizing charts (below) to determine the proper size of your frame, cockpit components, and crank arms.
- Call us for a personal phone consultation: +1 425-996-5116 Call Now
- After riding your bike a few times make an appointment to visit our studio in Kirkland, WA USA for an in-person bike fit with John. Or call us for information on how to submit a short video of you on your bike. John will then provide his recommendations on how to improve your position.
A Special Note for Women: Not too long ago, women’s-specific frame geometry was a hotly debated issue. Over time, the consensus has evolved to recognize that while in general women have different proportions than men (i.e., longer legs and shorter torsos), individual differences across the board mean that selecting the proper frame size and cockpit components is still the most effective way to achieve the best possible fit regardless of gender. Over the years, we’ve successfully fit men and women of all body types with a bike that works with them to deliver all the power and comfort possible.
Fit my Force 100
Frame Geometry
Frame Sizes and Dimensions
Sizes correspond to effective top tube length.
| Dimension | 50 | 54 | 56 | 58 | 60 |
|---|---|---|---|---|---|
| TT Top Tube (in cm) | 50.5 | 53.5 | 55 | 57 | 59 |
| ST Seat Tube (in cm) | 47 | 50 | 53 | 56 | 58 |
| STA Seat Tube Angle (in deg) | 74.5 | 73.5 | 73.0 | 72.5 | 72.5 |
| HT Head Tube (in cm) | 12 | 13 | 15.5 | 17 | 19 |
| HTA Head Tube Angle (in deg) | 72 | 72 | 72 | 73 | 73 |
| FR Fork Rake/Offset (in mm) | 45 | 45 | 45 | 45 | 45 |
| S Stack (in mm) | 520 | 530 | 554 | 571 | 590 |
| R Reach (in mm) | 361 | 378 | 386 | 390 | 404 |
Frame Weight
| Frame Size | Weight |
|---|---|
| 54 | 847 grams |
Frame Sizer
Use the simple frame sizing chart below to determine the correct size frame for you. Follow these steps:
- Measure your total height: Stand with your feet eight inches (approx. 20 cm) apart with your back against a wall. Set something rigid on top of your head so that it’s level and touching the wall. Measure from this point on the wall to the floor.
- Use the chart below to see which frame size maps to your height.
If your height falls directly on one of the vertical lines—for example, 5′ 7″ (170 cm), choose the smaller frame size.
Suggested Component Sizing
If you don’t know which size component is right for you, this chart will help you choose. If you’re still unsure, just call us: +1 425-996-5116 Call Now
| Component | 50 | 54 | 56 | 58 | 60 |
|---|---|---|---|---|---|
| Integrated Handlebar (width/length in mm) | 40/90 40/100 40/110 | 42/100 42/110 | 42/100 42/110 42/120 | 44/110 44/120 | 44/110 44/120 |
| Crank Arm Length (in mm) | 170 | 170 172.5 | 172.5 | 172.5 175 | 175 |
Fit my TrailForce RX
Frame Geometry
Frame Sizes and Dimensions
Sizes correspond to effective top tube length.
| Dimension | 54 | 56 | 58* |
|---|---|---|---|
| Top Tube (in cm) | 52.5 | 54.5 | 57 |
| Seat Tube (in cm) | 50 | 53 | 56 |
| Seat Tube Angle (in deg) | 74 | 73.5 | 73 |
| Head Tube (in cm) | 12.5 | 14.5 | 16.9 |
| Head Tube Angle (in deg) | 70.5 | 71 | 71.5 |
| Fork Rake/Offset (in mm) | 45 | 45 | 45 |
| Stack (in mm) | 550 | 570 | 590 |
| Reach (in mm) | 368 | 376 | 390 |
Frame Sizer
Use the simple frame sizing chart below to determine the correct size frame for you. Follow these steps:
- Measure your total height: Stand with your feet eight inches (approx. 20 cm) apart with your back against a wall. Set something rigid on top of your head so that it’s level and touching the wall. Measure from this point on the wall to the floor.
- Use the chart below to see which frame size maps to your height.
If your height falls directly on one of the vertical lines—for example, 5′ 7″ (170 cm), choose smaller frame size.
Suggested Component Sizing
If you don’t know which size component is right for you, this chart will help you choose. If you’re still unsure, just call us: +1 425-996-5116 Call Now
| Component | 54 | 56 | 58* |
|---|---|---|---|
| Integrated Handlebar (width/length in mm) | 42/100 42/110 | 42/100 42/110 | 44/110 44/120 |
| Crank Arm Length (in mm) | 170 172.5 | 172.5 | 172.5 175 |