Focus Whistler 3.9
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A wheel size to suit your height
With WHISTLER, you get the ideal wheel size to suit your height and needs: WHISTLER in sizes XL to M comes with 29" wheels. Sizes S and XS have 27.5" wheels.
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Reliable braking power and integrated design
When faced with risky situations, you need a partner you can rely on. That is why we have equipped our WHISTLER with disc brakes to ensure consistent braking performance and optimal braking in all weather conditions. We route all cables through the frame's down tube for better protection and durability and a clean look.
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Ready for your riding requirements
To let you fully adapt your bike to your needs, you can fit a rack, a mudguard, a light and a kickstand.
WHISTLER 3.9 Features
Rock Shox Judy TK Air Fork
Shimano SLX/Deore 1x12
Rack & mudguards can be fitted
Specifications
*The manufacturer reserves the right to change information on the website without notice, including specifications, models, colours and materials.
*Images are for illustrative purposes only and may not match the product description.Size Chart

| Segment | Section | XS | S | M | L | XL |
|---|---|---|---|---|---|---|
| Size in mm | 340 | 360 | 420 | 460 | 500 | |
| Handlebar Width | 720 | 720 | 720 | 720 | 720 | |
| Stem Length | 60 | 60 | 60 | 60 | 60 | |
| Crank Length | 170 | 170 | 170 | 170 | 170 | |
| Seatpost Length | 420 | 500 | 420 | 460 | 500 | |
| A | Seat Tube Length | 340 | 360 | 420 | 460 | 500 |
| B | Top Tube Length | 549 | 574 | 606 | 636 | 666 |
| C | Head Angle (°) | 68 | 68 | 68 | 68 | 68 |
| D | Seat Tube Angle (°) | 74 | 74 | 74 | 74 | 74 |
| E | Chainstay Length | 440 | 400 | 450 | 450 | 450 |
| F | Bottom bracket drop | 48 | 48 | 60 | 60 | 60 |
| G | Head Tube Length | 120 | 120 | 120 | 140 | 160 |
| H | Fork Length | 497 | 497 | 515 | 515 | 515 |
| I | Fork Offset | 42 | 42 | 51 | 51 | 51 |
| J | Wheelbase | 1079 | 1104 | 1155 | 1187 | 1220 |
| K | Stack | 605 | 605 | 630 | 649 | 667 |
| L | Reach | 375 | 400 | 425 | 450 | 475 |