HOOK EXT C

The Hook EXT C comes complete with a carbon frame and V2 carbon fork with triple cage mounts for speedier off-road raids. Sram provide the bike’s 10 – 42T XD cassette for a great range of gears, so you can keep the pace high over whichever surface you decide to tear across. Our friends at Hunt handle the hoops, providing the bike with a tubeless-ready Adventure Sport 27.5’’ wheelset. Finished with head-turning tan-wall WTB Venture tyres, onlookers will have to be quick if they want to catch a glimpse as you fly through the undergrowth. It comes in this year’s glossy metallic black colourway, too.

With the ability to carry serious loads, triple mounts on the forks and three separate bottle cage fixings allow you to carry as much as you need with you.

HIGHLIGHTS

WHEELS

Tubeless ready Hunt Adventure Sport 27.5’’ wheelset with tubeless ready WTB Venture 27.5’’ x 2.0’’ tires.
FRAME

Full carbon frame with tapered head tube, through axles, fender mounts, stealth dropper post routing and T47 bottom bracket.
FORK

Full carbon tapered fork with internal light cable routing, through axles and triple cage mounts.
CASSETTE

Sram XG-1150 10 – 42 T cassette for wide 1x gear range.
CRANK

Bombtrack Lyer 30 mm aluminium crank with 38t direct mount chainring.
DISC BRAKES

Sram Rival hydraulic disc brakes with 160 mm rotors.

Item 1 of 6

GLOSSY METALLIC BLACK

click for gallery

GLOSSY DARK GREEN

click for gallery

SPECIFICATIONS
BUILD INFOS
GEOMETRY

Model	HOOK EXT C
Color 1	Glossy Metallic Black
Color 2	Glossy Dark Green
Frame	TORAY T700 / T800 Hi-Mod carbon, TA, rack / fender mounts, 68 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	BOMBTRACK CX-10 drop bar, 31.8 mm, 10° flare
Grips	BOMBTRACK ESCAPE bar tape
Stem	BOMBTRACK ROAM forged aluminium stem, -7°
Headset	Sealed integrated aheadset, 1.1/2'' - 1.1/8''
Levers	SRAM RIVAL 1 double tap hydraulic
Shifter	SRAM RIVAL 1 double tap 1 x 11
Brakes	SRAM RIVAL flat mount hydraulic disc brakes with 160 mm rotors
Crankset	BOMBTRACK LYER forged aluminium crank, direct mount interface (SRAM compatible),30 mm spindle
BB	BOMBTRACK T47 external sealed BB for 30 mm spindle
Pedals	-
Chain	KMC X11 EPT Anti Rust chain, 1/2'' x 11/128'', 114L
Chainring	CNC machined aluminium, narrow-wide, 38 T
Cassette	SRAM XG-1150 11-speed, 10 - 42 T
Front derailleur	-
Rear derailleur	SRAM RIVAL 1, clutch, long cage
Front hub	HUNT ADVENTURE SPORT sealed hub, centerlock disc
Rear hub	HUNT ADVENTURE SPORT sealed hub, centerlock disc, XD cassette body
Through axle	12 x 100 mm / 12 x 142 mm
Front rim	HUNT ADVENTURE SPORT double wall asymmetric rim, TLC, i20, 28h
Rear rim	HUNT ADVENTURE SPORT double wall asymmetric rim, TLC, i20, 28h
Saddle	BOMBTRACK DART saddle
Seat post	BOMBTRACK YEW 27.2 mm x 300 mm
Seat clamp	BOMBTRACK PRIME 31.8 mm
Front tire	WTB VENTURE TCS LIGHT 27.5'' x 2.0'', tubeless ready
Rear tire	WTB VENTURE TCS LIGHT 27.5'' x 2.0'', tubeless ready
Fender	-
Rack	-
Kickstand	-
Light	-
Weight	9.4 kg (size M)
Weight frameset	1260 frame (size M, incl. TA, hanger, cable guides) / 600 g fork (300 mm steerer, incl. TA)
Maximum rider weight	105 kg incl. luggage
ASTM riding condition	2

Final product may vary in appearance, finish and minor details.

Model	HOOK EXT C
BB standard	T47 - 68 mm shell width
Headset standard (S.H.I.S.)	IS42 / 28.6 \| IS52 / 40
Headset crown race angle	36°
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 45C
Maximum chainring clearance 1x	46 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	FD direct mount
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	152 mm
BCD crank	Direct mount (Sram compatible)
Chainline	45 mm
Chainring offset	3 mm
Spoke length front wheel	264 mm, 268 mm
Spoke length rear wheel	266 mm, 264 mm
Spoke count (front / rear)	28 / 28
ERD	558 mm
Front hub PCD	45 mm / 58 mm
Rear hub PCD	49 mm / 58 mm
Front hub flange distance / offset	62 mm center to center / 7.7 mm
Rear hub flange distance / offset	57.7 mm center to center / 7.4 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	0 mm
Seat post length	300
Derailleur hanger	BT-DH-013
Frame small parts	BT-CR-014 / BT-CR-015
Hub end caps front	-
Hub end caps rear	-
Cassette body	-
Crankarm bolt	BT-CRP-002
Through axle front	BT-TA-F-601
Through axle rear	BT-TA-R-603

FRAME GEOMETRY

Model	HOOK EXT C
Bike Size	XS	S	M	L	XL
Wheel size	27.5''	27.5''	27.5''	27.5''	27.5''
Seat Tube Length	490	520	540	560	580
Horizontal TT length	520	535	550	565	580
Seat Angle	74.5°	74.0°	73.0°	73.0°	73.0°
Seat Angle effective	74.5°	74.0°	73.0°	73.0°	73.0°
Head Angle	70.5°	71.0°	71.5°	72.0°	72.0°
Headtube Length	120	140	150	170	190
BB Drop	67	67	67	67	67
Chainstay Length	435	435	435	435	435
Fork Offset	48	48	48	48	48
Trail	71	67	64	61	61
Wheelbase Length	1018	1025	1025	1035	1050
Standover	759	783	798	818	837
Reach	371	375	376	384	394
Stack	537	558	568	591	610
Front Center	592	599	601	609	624
Axle to Crown	398	398	398	398	398
Minimum rider height ¹	1550	1630	1710	1790	1860
Maximum rider height ¹	1650	1730	1810	1880	1950

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 C
Bike Size	XS	S	M	L	XL
Handlebar type	Dropbar	Dropbar	Dropbar	Dropbar	Dropbar
Width (drops)	400	420	420	440	440
Width (barends)	446	466	466	486	486
Reach	75	75	75	75	75
Flare	10°	10°	10°	10°	10°
Backsweep	-	-	-	-	-
Drop	116	116	116	116	116
Upsweep	-	-	-	-	-
Rise	-	-	-	-	-