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“An ultralight carbon construction strips mass from the Hook EXT while retaining the versatility the range is known for.”
SPECIFICATIONS
| Model | HOOK EXT C |
|---|---|
| Color 1 | Metallic Red / Black |
| Color 2 | Light Blue |
| Color 3 | Metallic Black |
| Frame | Toray T800 carbon blend, TA, rack / fender mounts, internal hub dynamo cable routing, 85.5 mm T47 BB shell, UDH derailleur hanger, optional full internal cable routing |
| Fork | Seido MGV full carbon, TA, 1.1/2'' - 1.1/8'', fender / triple cage mounts, 180 mm max rotor size, lowrider rack compatible, internal hub dynamo cable routing |
| Headset | Sealed integrated aheadset, 1.1/2'' - 1.1/2'' |
| Through axle | 12 x 100 mm / 12 x 142 mm |
| Seat clamp | Bombtrack Prime 31.8 mm |
| Rack | - |
| Weight frameset | 1380 g frame (size M, incl. TA, hanger) / 550 g fork (300 mm steerer, incl. TA) |
| Maximum rider weight | 115 kg incl. luggage |
| ASTM riding condition | 2 |
BUILD INFO
| Model | HOOK EXT C |
|---|---|
| BB standard | T47 - 85.5 mm shell width |
| Headset standard (S.H.I.S.) | IS52 / 28.6 | IS52 / 40 |
| Headset crown race angle | 45° |
| Fork steerer inner diameter | 23.6 mm |
| Fork max tire clearance w/o fender | 650B x 57C / 700C x 57C |
| Frame max tire clearance w/o fender | 650B x 57C / 700C x 45C |
| Maximum chainring clearance 1x | 42 T with 47 mm chainline |
| Maximum chainring clearance 2x | 48 / 31 T with 47 mm chainline |
| Seat post diameter | 27.2 mm |
| Seat clamp diameter | 31.8 mm |
| Front derailleur clamp diameter | bolt on FD hanger included in frame |
| Frame front derailleur compatible | yes |
| Brake mount front | FM 160 / 180 |
| Brake mount rear | FM 160 / 180 |
| Maximum rotor clearance front | 180 mm |
| Maximum rotor clearance rear | 180 mm |
| Front through axle | 12 mm x 100 mm, 1.5 thread pitch |
| Rear through axle | 12 mm x 142 mm, 1.0 thread pitch |
| ISO testing standard | Road |
| Bike trailer | not approved |
| Seat tube mounted child seat | not approved |
| Derailleur hanger | Sram UDH |
| Frame small parts | BT-CR-014 / BT-CR-015 |
| Through axle front | BT-TA-F-601 |
| Through axle rear | BT-TA-R-606 |
GEOMETRY
FRAME GEOMETRY
| Model | HOOK EXT C | ||
|---|---|---|---|
| Bike Size | S | M | L |
| Wheel size | 700C | 700C | 700C |
| Seat Tube Length | 500 | 530 | 570 |
| Horizontal TT length | 541 | 563 | 580 |
| Seat Angle | 74.5° | 74.0° | 74.0° |
| Head Angle | 70.5° | 70.5° | 70.5° |
| Headtube Length | 130 | 150 | 170 |
| BB Drop | 72 | 72 | 72 |
| Chainstay Length | 425 | 429 | 434 |
| Fork Offset | 53 | 53 | 53 |
| Trail | 69 | 69 | 69 |
| Wheelbase Length | 1034 | 1056 | 1079 |
| Standover | 773 | 805 | 822 |
| Reach | 384 | 396 | 407 |
| Stack | 564 | 583 | 602 |
| Front Center | 619 | 637 | 655 |
| Axle to Crown | 410 | 410 | 410 |
| Minimum rider height * | 1630 | 1710 | 1790 |
| Maximum rider height * | 1730 | 1810 | 1880 |
