Tirone 27,5+

    Tirone 27,5+
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    Tirone 27,5+


    To this day, titanium has not lost its charm, with its many assets for use in frame construction. This is appreciated not only by aficionados worldwide but by the BULLS engineers as well. For the Tirone, a modern titanium frame was designed and fitted with equipment for today’s riding style. Because titanium can be more than just lightweight and exquisite-looking. This precious material from Tennessee damps and absorbs the tiniest shocks. This, coupled with titanium’s property as an extremely robust material, creates unbeatable properties for a hardtail frame. To enhance these qualities even further and equip the Tirone for rough terrain, we fitted the bike with a 27.5+ wheelset, with 2.8-inch wide SCHWALBE Rocket Ron tyres. The complete SHIMANO XT groupset and brake system and the Rock Shox RS1 fork further underscore the character of the Tirone as an ‘all-purpose bike’. This is how the Tirone can manage the balancing act between ‘collector’s item’ and racy hardtail bike for fun on the trail.
    The article reference number is .

    Techn. spezifications

    Frame Titanium
    Frame size 44 cm, 48 cm, 54 cm
    Wheel size 27,5+ inch
    Fork Rock Shox RS 1
    Travel 100 mm
    Headset Acros AZX-212
    Rear derailleur Shimano Deore XT RD-M8000-GS Shadow Plus
    Shifter Shimano Deore XT SL-M8000 I-Spec
    Gears 22 derailleur gears
    Front derailleur Shimano Deore XT FD-M8025-H
    Bottom bracket Shimano Deore XT SM-BB-MT800-PA Press Fit
    Crank set Shimano Deore XT FC-M8000-B2 36/26T
    Cassette Shimano Deore XT CS-M8000 11-42T
    Brakes Shimano Deore XT BR-M8000 180/160mm
    Brake levers Shimano Deore XT BL-M8000 I-Spec
    Saddle Fizik Tundra M7
    Seatpost Lynskey Titanium
    Chain Shimano Deore XT CN-HG7001-11
    Spokes Sapim D-Light
    Hubs SRAM X0
    Tires Schwalbe Rocket Ron
    Tyre size 70-584 (27,5 x 2.8)
    Handelbar BULLS
    Stem BULLS
    Weight ca.11,8 Kg
    Sex Male
    Admissible total weight 115 kg

    Frame geometries

    Frame Geometry

    Frame geometries

    Frame Height 44 cm 48 cm 54 cm
    Seattube length A 440 mm 480 mm 540 mm
    Toptube length B 595 mm 615 mm 635 mm
    Head Tube C 100 mm 115 mm 140 mm
    Wheelbase D 1094.0 mm 1113.0 mm 1131.0 mm
    Chain strut E 445 mm 445 mm 450 mm
    Crank Offset F 60 mm 60 mm 55 mm
    Reach R 404 mm 419 mm 427 mm
    Stack S 625 mm 639 mm 660 mm
    Seating angle α 73.0° 73.0° 72.5°
    Steering angle β 70.5° 70.5° 71.0°

    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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