HOOK EXT RIVAL AXS
Steel is real. Especially when the Hook EXT Rival AXS comes equipped as standard with Sram’s electronic Rival AXS 1x12 groupset and hydraulic brakes. The drivetrain comes finished with the Sram Rival Wide 38T direct mount chainring for consistent chain control. The Columbus Cromor double-butted frame with tapered head tube and rear light mount will last longer than the test of time. So you can hit the road less travelled, wider rims improve tyre performance. You’ll also have more mounting options than to shake a fist at: top tube direct mounts, triple cage mounts on the down tube and seat tube for cargo positions of your choice, as well as underneath the down tube and rear rack mounts for those adventures that delve deep into unknown territory.
The Hook EXT is the choice when you're unsure of the terrain, or know you want to cut loose.
HIGHLIGHTS
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FRAME
Columbus Cromor double butted frame with tapered head tube and rear light mount.
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FORK
Full carbon tapered fork with internal light cable routing, through axles and triple cage mounts.
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HUBS
Bombtrack Tau 12 mm through axle hubs.
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CRANK
Sram Rival Wide crankset with 38 T direct mount chainring.
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DRIVETRAIN
Electronic Sram Rival AXS 1 x 12 groupset and hydraulic brakes.
SPECIFICATIONS
| Model | HOOK EXT RIVAL AXS |
|---|---|
| Color 1 | Matt Charcoal Grey |
| Color 2 | - |
| Frame | COLUMBUS CROMOR double butted tubing, TA, rack / fender mounts, internal light cable routing, rear light mount, 86.5 mm T47 BB shell |
| Fork | Full carbon, TA, 1.1/2'' - 1.1/8'', triple cage mounts (can double as fender mounts),internal hub dynamo cable routing |
| Handlebar | SEIDO TACKLE drop bar, 31.8 mm, 16° flare |
| Grips | BOMBTRACK ESCAPE bar tape |
| Stem | SEIDO DRIFT forged aluminium stem, 0° |
| Headset | Sealed external aheadset, 1.1/2'' - 1.1/8'' |
| Levers | SRAM RIVAL eTap AXS double tap hydraulic |
| Shifter | SRAM RIVAL eTap AXS double tap 1 x 12 |
| Brakes | SRAM RIVAL flat mount hydraulic disc brakes with 160 mm rotors |
| Crankset | SRAM RIVAL WIDE, DUB spindle |
| BB | SRAM DUB T47 85.5 mm |
| Pedals | - |
| Chain | SRAM RIVAL, flattop, 1/2'' x 11/128'', 114L |
| Chainring | SRAM RIVAL, 12-speed, 38 T |
| Cassette | SRAM XPLR XG-1251 12-speed, 10 - 44 T |
| Front derailleur | - |
| Rear derailleur | SRAM RIVAL eTap AXS XPLR, clutch, medium cage |
| Front hub | BOMBTRACK TAU sealed hub, 6-bolt disc |
| Rear hub | BOMBTRACK TAU sealed hub, XDR driver, 6-bolt disc |
| Through axle | 12 x 100 mm / 12 x 142 mm |
| Front rim | WTB ST Light i25 double wall, TCS 2.0, 32h |
| Rear rim | WTB ST Light i23 double wall, TCS 2.0, 32h |
| Saddle | BOMBTRACK DART saddle |
| Seat post | SEIDO YEW aluminium seatpost, 27.2 mm x 300 mm |
| Seat clamp | BOMBTRACK PRIME forged aluminium seat clamp, 29.8 mm |
| Front tire | WTB RANGER TCS LIGHT / FAST ROLLING 27.5'' x 2.0'', tubeless ready |
| Rear tire | WTB RANGER TCS LIGHT / FAST ROLLING 27.5'' x 2.0'', tubeless ready |
| Fender | - |
| Rack | - |
| Kickstand | - |
| Light | - |
| Weight | TBA (size M) |
| Weight frameset | 2710 g frame (size L, incl. TA, hanger) / 600 g fork (300 mm steerer, incl. TA) |
| Maximum rider weight | 130 kg incl. Luggage |
| ASTM riding condition | 2 |
Final product may vary in appearance, finish and minor details.
BUILD INFOS
| Model | HOOK EXT RIVAL AXS |
|---|---|
| BB standard | T47 - 85.5 mm shell width |
| Headset standard (S.H.I.S.) | EC34 / 28.6 | EC44 / 40 |
| Headset crown race angle | 36° |
| Fork steerer inner diameter | 23.6 mm |
| Fork max tire clearance w/o fender | 650B x 52C / 700C x 45C |
| Frame max tire clearance w/o fender | 650B x 52C / 700C x 40C |
| Maximum chainring clearance 1x | 44 T with 45 mm chainline |
| Maximum chainring clearance 2x | 50 / 36 T with 45 mm chainline |
| Seat post diameter | 27.2 mm |
| Seat clamp diameter | 29.8 mm |
| Front derailleur clamp diameter | 28.6 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 165 mm / S - M 170 mm / L - XL 175 mm |
| Q Factor | 150 mm |
| BCD crank | Direct mount (Sram compatible) |
| Chainline | 47.5 mm |
| Chainring offset | 6 mm |
| Spoke length front wheel | 274 mm, 275 mm |
| Spoke length rear wheel | 273 mm, 275 mm |
| Spoke count (front / rear) | 32 / 32 |
| ERD | 570 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 - M 45 mm / L - XL 60 mm |
| Stem angle | 0° |
| Headset spacers | 1 x 10 mm, 2 x 5 mm |
| Seat post offset | 0 mm |
| Seat post length | 300 |
| Derailleur hanger | BT-DH-008 |
| Frame small parts | BT-CR-007 / BT-CR-006 |
| Hub end caps front | BT-HC-014 |
| Hub end caps rear | BT-HC-020 |
| Cassette body | BT-CB-013 |
| Crankarm bolt | - |
| Through axle front | BT-TA-F-601 |
| Through axle rear | BT-TA-R-602 |
GEOMETRY
FRAME GEOMETRY
| Model | HOOK EXT RIVAL AXS | ||||
|---|---|---|---|---|---|
| Bike Size | XS | S | M | L | XL |
| Wheel size | 27.5'' | 27.5'' | 27.5'' | 27.5'' | 27.5'' |
| Seat Tube Length | 460 | 500 | 530 | 570 | 600 |
| Horizontal TT length | 519 | 533 | 556 | 570 | 595 |
| Seat Angle | 74.5° | 74.5° | 74.0° | 74.0° | 74.0° |
| Seat Angle effective | 74.5° | 74.5° | 74.0° | 74.0° | 74.0° |
| Head Angle | 71.5° | 71.5° | 72.0° | 72.0° | 72.0° |
| Headtube Length | 110 | 130 | 150 | 170 | 190 |
| BB Drop | 75 | 75 | 70 | 70 | 70 |
| Chainstay Length | 425 | 425 | 425 | 425 | 425 |
| Fork Offset | 48 | 48 | 48 | 48 | 48 |
| Trail | 65 | 65 | 62 | 62 | 62 |
| Wheelbase Length | 995 | 1010 | 1025 | 1040 | 1060 |
| Standover | 748 | 776 | 803 | 831 | 855 |
| Reach | 365 | 374 | 387 | 396 | 409 |
| Stack | 554 | 573 | 589 | 608 | 627 |
| Front Center | 581 | 596 | 610 | 625 | 645 |
| Axle to Crown | 398 | 398 | 398 | 398 | 398 |
| 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.
HANDLEBAR GEOMETRY
| Model | HOOK EXT RIVAL AXS | ||||
|---|---|---|---|---|---|
| Bike Size | XS | S | M | L | XL |
| Handlebar type | Dropbar | Dropbar | Dropbar | Dropbar | Dropbar |
| Width (drops) | 420 | 420 | 420 | 440 | 440 |
| Width (barends) | 490 | 490 | 490 | 510 | 510 |
| Reach | 77 | 77 | 77 | 77 | 77 |
| Flare | 16° | 16° | 16° | 16° | 16° |
| Backsweep | - | - | - | - | - |
| Drop | 128 | 128 | 128 | 128 | 128 |
| Upsweep | - | - | - | - | - |
| Rise | - | - | - | - | - |
