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Bombtrack Bicycle Company Tension 1

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Details

Designed for hour-long racing efforts, or hacking through the woods at maximum speed.

The Tension 1 is the perfect bike for those wishing to start working their way up the cyclocross ranks. With its competition-ready legal build, our entry-level racer gives you everything you need to start earning those podium places with a competent aluminum frame and lightweight carbon fork. A Sram Apex One groupset with single-chainring 11-speed gearing – though wide for elite-level racing – will leave you enough in reserve lest you stall mid-race or enjoy taking it easy in the off-season.

Geometry

Sizes:
Bike SizeXSSMLXL
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°
Seat Angle effective 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 ¹ 1500 1600 1700 1790 1880
Maximum rider height ¹ 1610 1710 1810 1900 1990

¹ 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.

Geometry

Sizes:
Bike SizeXSSMLXL
Handlebar type Dropbar Dropbar Dropbar Dropbar Dropbar
Width (drops) 400 400 420 440 440
Width (barends) 446 446 466 486 486
Reach 75 75 75 75 75
Flare 10° 10° 10° 10° 10°
Backsweep - - - - -
Drop 116 116 116 116 116
Upsweep - - - - -
Rise - - - - -

Specs

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
Rims WTB ST i19 double wall, TCS 2.0, 32h
Hubs Front: BOMBTRACK ARC sealed hub, 6-bolt disc
Rear: BOMBTRACK ARC sealed hub, 11-speed, 6-bolt disc
Axles 12 x 100 mm / 12 x 142 mm
Tires XS - S VEE TIRE XCX 120 TPI TLR 32-584 / M - XL CHALLENGE GRIFO TLR 33-622, tubeless ready
Bottom Bracket BOMBTRACK T47 internal sealed BB for 30 mm spindle
Crankset BOMBTRACK LYER forged aluminium crank, direct mount interface (SRAM compatible),30 mm spindle
Chainrings CNC machined aluminum, narrow-wide, 40 T
Shifters SRAM APEX 1 double tap 1 x 11
Rear Derailleur SRAM APEX 1, clutch, long cage
Cassette/Freewheel SRAM PG-1130 11-speed, 11 - 42 T
Chain KMC X11 chain, 1/2'' x 11/128'', 114L
Brakes SRAM APEX flat mount hydraulic disc brakes with 140 mm rotors
Brake Levers SRAM APEX 1 double tap hydraulic
Handlebars BOMBTRACK CX-10 drop bar, 31.8 mm, 10° flare
Tape/Grips BOMBTRACK COMMAND bar tape
Stem BOMBTRACK ROAM forged aluminum stem, -7°
Headset Sealed integrated aheadset, 1.1/2" - 1.1/8"
Seatpost BOMBTRACK BEECH 27.2 mm x 315 mm
Saddle BOMBTRACK DART saddle
Pedals Sold separately

* Subject to change without notice.

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