The Focus Whistler 3.7 Mountain Bike has been built by the Focus staff. The frame is made of aluminium, which makes it resistant. Thanks to the Shimano Deore M4120 2×11 speed transmission and the 29” Rim VIPER 21, 622-21, 32H disc brake, the bike provides excellent performance during sport. The SR Suntour Epixon 9 Air LOR, 9×100 mm fork offers you safety and control so you can enjoy your mountain rides to the fullest. The geometry is designed to suit both male and female physiques. It combines a sophisticated structure in the tubes that adds efficiency, as well as a plus of aerodynamics thanks to the profiles they adapt.
The Focus Whistler 3.9 MTB is a rigid bike with 29″ wheels and is set up so that you can completely adjust your bike to your needs. In addition, you have the option of mounting luggage racks, mudguards, lights and the support leg. Braking performance is consistent when faced with dangerous situations, which is why the Whistler with disc brakes ensures consistent braking performance.
| Main features | |
|---|---|
| Size: | S,M,L,XL |
| Frame: | 6061 aluminium |
| Fork: | SR Suntour Epixon 9 Air LOR, 9×100 mm |
| Transmission | |
| Gearshift: | Shimano Deore 2×11 speeds |
| Gear levers: | Shimano Deore 2×11 speeds |
| Cranks and chainring: | PROWHEELMPP561 36/26 teeth |
| Cassette: | Shimano HG200 2×11 speeds (11-36) |
| Chain: | KMC X10 speeds |
| Brakes | |
| Front brake: | Shimano MT200 hydraulic disc |
| Rear brake: | Shimano MT200 hydraulic disc |
| Wheels and tyres | |
| Rims: | Rim VIPER21, 622-21, 32H |
| Tyres: | Schwalbe Smart Sam 2.25 |
| Front hub: | Shimano FH-TX505 QR |
| Rear hub: | Shimano TX505 QR |
| Components | |
| Handlebar: | Aluminium 720mm |
| Road stem: | Aluminium 31.8 mm |
| Saddle: | Focus Sport |
| Seat post: | Aluminium 27.2 mm |
| Pedals: | Not included |













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