Bombtrack TENSION 1
Monthly payment from €68.46 / 60 months
€2,399.99 inc. VAT
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 aluminium 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.
Designed for hour-long racing efforts, or hacking through the woods at maximum speed.
| Color 1 | Matt Rock Grey |
| Color 2 | – |
| 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 |
| Handlebar | BOMBTRACK CX-10 drop bar, 31.8 mm, 10° flare |
| Grips | BOMBTRACK COMMAND bar tape |
| Stem | BOMBTRACK ROAM forged aluminium stem, -7° |
| Headset | Sealed integrated aheadset, 1.1/2” – 1.1/8” |
| Levers | SRAM APEX 1 double tap hydraulic |
| Shifter | SRAM APEX 1 double tap 1 x 11 |
| Brakes | SRAM APEX flat mount hydraulic disc brakes with 140 mm rotors |
| Crankset | BOMBTRACK LYER forged aluminium crank, direct mount interface (SRAM compatible),30 mm spindle |
| BB | BOMBTRACK T47 internal sealed BB for 30 mm spindle |
| Pedals | – |
| Chain | KMC X11 chain, 1/2” x 11/128”, 114L |
| Chainring | CNC machined aluminium, narrow-wide, 40 T |
| Cassette | SRAM PG-1130 11-speed, 11 – 42 T |
| Front derailleur | – |
| Rear derailleur | SRAM APEX 1, clutch, long cage |
| Front hub | BOMBTRACK ARC sealed hub, 6-bolt disc |
| Rear hub | BOMBTRACK ARC sealed hub, 11-speed, 6-bolt disc |
| Through axle | 12 x 100 mm / 12 x 142 mm |
| Front rim | WTB ST i19 double wall, TCS 2.0, 32h |
| Rear rim | WTB ST i19 double wall, TCS 2.0, 32h |
| Saddle | BOMBTRACK DART saddle |
| Seat post | BOMBTRACK BEECH 27.2 mm x 315 mm |
| Seat clamp | BOMBTRACK ORIGIN 31.8 mm |
| Front tire | XS – S VEE TIRE XCX 120 TPI TLR 32-584 / M – XL CHALLENGE GRIFO TLR 33-622, tubeless ready |
| Rear tire | XS – S VEE TIRE XCX 120 TPI TLR 32-584 / M – XL CHALLENGE GRIFO TLR 33-622, tubeless ready |
| Fender | – |
| Rack | – |
| Kickstand | – |
| Light | – |
| Weight | 9.4 kg (size M) |
| Weight frameset | 1580 g frame (size L, incl. TA, hanger) / 610 g fork (300 mm steerer, incl. TA) |
| Maximum rider weight | 120 kg incl. luggage |
| ASTM riding condition | 2 |
| BB standard | T47 – 86.5 mm shell width |
| Headset standard (S.H.I.S.) | IS42 / 28.6 | IS52 / 40 |
| Headset crown race angle | 45° |
| Fork steerer inner diameter | 23.6 mm |
| 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 |
| Front derailleur 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 thread pitch |
| Rear through axle | 12 mm x 142 mm, 1.5 thread pitch |
| ISO testing standard | Road |
| Crankarm | XS – S 165 mm / M 170 mm / L – XL 175 mm |
| Q Factor | 152 mm |
| BCD crank | Direct mount (Sram compatible) |
| Chainline | 45 mm |
| Chainring offset | 5 mm |
| Spoke length front wheel | XS – S 273 mm, 274 mm / M – XL 291 mm, 293 mm |
| Spoke length rear wheel | XS – S 274 mm, 272 mm / M – XL 293 mm, 291 mm |
| Spoke count (front / rear) | 32 / 32 |
| ERD | XS – S 570 mm / M – XL 604 mm |
| Front hub PCD | 58 mm |
| Rear hub PCD | 58 mm |
| Front hub flange distance / offset | 56.5 mm center to center / 6.6 mm |
| Rear hub flange distance / offset | 51 mm center to center / 8.8 mm |
| Stem length | XS – S 80 mm / M 90 mm / L – XL 100 mm |
| Stem angle | -7° |
| Headset spacers | 1 x 10 mm, 2 x 5 mm |
| Seat post offset | 24 mm |
| Seat post length | 315 mm |
| Bike trailer | approved |
| Seat tube mounted child seat | approved |
| Derailleur hanger | BT-DH-018 |
| Frame small parts | BT-CR-013 |
| Hub end caps front | BT-HC-012 |
| Hub end caps rear | BT-HC-017 |
| Cassette body | BT-CB-006 |
| Crankarm bolt | BT-CRP-002 |
| Through axle front | BT-TA-F-603 |
| Through axle rear | BT-TA-R-601 |
FRAME GEOMETRY
| 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° |
| 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 |
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