the TENSION

A faster and meaner hydroformed aluminium cyclocross racer.

"For elites to cross-curios riders looking to take on a mates’ race down in the woods."



  • * Lightweight aluminum frame with heavily hydro formed tube profiles and T47 bottom bracket.
  • * Size XS and S will come with 650B adjusted geometry to ensure proper fit without any compromises in geometry.
  • * Race proven geometry for fast handling and acceleration.
  • * Biaxially ovalized downtube for maximum power transfer and steering precision.
  • * Hydroformed toptube for supreme compliance and steering precision.
  • * Full carbon fork with through axles and flat mount disc brake.
  • * Rear rack and fender mounts.
  • * Front derailleur compatible.
  • * 12 mm through axles front and rear.
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  • SPECIFICATION

    Color Glossy Grey / Green
    Frame 6061-T6 double butted aluminium, TA, rack / fender mounts, 86.5 mm BB T47 shell
    Fork full carbon, TA, 1.1/2'' - 1.1/8'', fender mounts
    Headset Sealed integrated aheadset, 1.1/2'' - 1.1/8''
    Seat clamp BOMBTRACK ORIGIN forged aluminium seat clamp, 31.8 mm
    Weight frameset 1580 g frame (size L, incl. TA, hanger)
    610 g fork (300 mm steerer, incl. TA)
    Maximum rider weight 115 kg incl. luggage
    ASTM riding condition 2

  • BUILD INFO

    BB Standard T47 - 86.5 mm shell width
    Headset Standard (S.H.I.S.) IS42 / 28.6 | IS52 / 40
    Fork Max Tire Clearance w/o fender XS - S 650B x 37C /
    M - XL 700C x 37C
    Frame Max Tire Clearance w/o fender XS - S 650B x 35C /
    M - XL 700C x 37C
    Maximum chainring clearance 1x 42 T with 45 mm chainline
    Maximum chainring clearance 2x 50 / 34 T with 43.5 mm chainline
    Seat Post Diameter 27.2 mm
    Seat clamp diameter 31.8 mm
    Brake mount front FM
    Brake mount rear FM
    Maximum rotor clearance front 160 mm
    Maximum rotor clearance rear 160 mm
    Front through axle 12 mm x 100 mm, 1.5 TPI
    Rear through axle 12 mm x 142 mm, 1.5 TPI
    Derailleur hanger BT-DH-018
    ISO testing standard Road

  • GEOMETRY FRAME

    Bike Size XS S M L XL
    Wheel size 650B 650B 700C 700C 700C
    Seat Tube Length 460 490 530 560 590
    Horizontal TT length 507 523 552 570 586
    Seat Angle 73.5° 73.5° 73.0° 73.0° 73.0°
    Head Angle 71.0° 71.5° 71.5° 72.0° 72.0°
    Headtube Length 100 115 139 162 179
    BB Drop 55 55 65 65 65
    Chainstay Length 410 410 425 425 425
    Fork Offset 45 45 45 45 45
    Trail 67 64 70 66 66
    Wheelbase Length 967 979 1014 1028 1044
    Standover 734 757 799 825 848
    Reach 355 366 380 391 402
    Stack 514 530 563 587 603
    Front Center 563 575 598 611 627
    Axle to Crown 400 400 400 400 400
    Minimum rider height * 1500 1600 1700 1790 1880
    Maximum rider height * 1610 1710 1810 1900 1990

    * Our bike size recommendation generally represents a rough guideline for quickly narrowing down the sizes from which to choose based on the body height. Bike fitting is a complex topic and other measurements and factors have to be accounted for as well. Since no two human bodys are exactly the same it is not possible to give a 100% correct advice for everyone. Therefore BOMBTRACK cannot guarantee for the stated recommendations to be correct for every individual customer. The best way to work out the correct size is to consult a local BOMBTRACK dealer or a professional bike fitter and have them determine the needed size.

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