Grinder 1

    Grinder 1
    Grinder 1


    If you are looking to start Gravel Biking, you will enjoy the Grinder 1 without making trade-offs in terms of riding characteristics. The ergonomic and sporty seating position is appealing here – and so is the pleasantly long wheelbase, which ensures a comfortably smooth ride. Equipped with the reliable SHIMANO Sora groupset and Shimano hydraulic disc brakes, the bike has lots of riding pleasure in store and can be easily used for all your everyday routes.
    The article reference number is .

    Techn. spezifications

    Frame Aluminium 7005, internal cable routing, smooth welding
    Frame size 49 cm, 52 cm, 55 cm, 58 cm, 61 cm
    Wheel size 28 inch
    Fork Aluminium
    Headset -
    Rear derailleur -
    Shifter -
    Gears 18 derailleur gears
    Front derailleur Shimano FD-R3000
    Bottom bracket Shimano BB-RS500
    Crank set Shimano FC-R3000 Compact
    Cassette -
    Brakes Shimano BR-RS305 mechanical disc brakes
    Brake levers -
    Saddle BULLS
    Seatpost BULLS
    Rims DDM-2
    Front hub Formula CL 25
    Rear hub Formula CL 26
    Tires Schwalbe G-One Raceguard
    Tyre size 40-622 (28 x 1,50)
    Handelbar BULLS
    Stem -
    Weight ca.12,2 Kg
    Sex Male
    Admissible total weight 115 kg

    Frame geometries

    Frame Geometry

    Frame geometries

    Frame Height 49 cm 52 cm 55 cm 58 cm 61 cm
    Seattube length A 490 mm 520 mm 550 mm 580 mm 610 mm
    Toptube length B 536 mm 552 mm 569 mm 587 mm 604 mm
    Head Tube C 135 mm 160 mm 189 mm 213 mm 240 mm
    Wheelbase D 1020.0 mm 1025.0 mm 1037.0 mm 1047.0 mm 1061.0 mm
    Chain strut E 430 mm 430 mm 430 mm 430 mm 430 mm
    Crank Offset F 75 mm 75 mm 70 mm 70 mm 70 mm
    Reach R 370 mm 375 mm 381 mm 389 mm 395 mm
    Stack S 562 mm 589 mm 614 mm 638 mm 664 mm
    Seating angle α 73.5° 73.3° 73.0° 72.8° 72.5°
    Steering angle β 70.0° 71.0° 71.5° 72.0° 72.0°

    Find the right frame size

    The right frame size is the basis for comfort, performance and long-term driving pleasure

    Our size recommendations for your BULLS bike according to the different bicycle types and areas of use. The information in the table serves as a reference. Your individual frame size may differ depending on your build.

    You could also just go to the BULLS specialist dealer right away for advice and take your pick during a test ride.

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