The EXT frameset was designed for 27.5"/650b wheels to accommodate wider tires. With the wider tires, you have a bike with extremely high grip and comfort, making it suitable for even the toughest tours. The perfect bike that gravel racers and bikepackers have long dreamed of. The special chainstay construction with yoke allows for the chainstays to be kept nice and short while still allowing the use of 700c wheels if desired.
The frame, made of double-butted Columbus Cromor steel, is equipped with a thru-axle. The frame has mounts for mudguards and a rear rack. The frame itself has sufficient eyelets for bottle cages or Anything Cages, and the top tube features a direct mount option for screwing on suitable top tube bags.
- Double-butted CrMo frame with tapered head tube and T47 bottom bracket
- Seido MGV full carbon fork with lowrider mounts and internal light cable routing
- Integrated light cable routing and rear light mount
- Direct mount for top tube bags and bottle cage mounts under the down tube
- Front derailleur compatible
- Headset: Sealed external ahead set, 1.5'' - 1.1/8"
- Thru axle 12 x 100 mm / 12 x 142 mm
- Seat clamp Bombtrack Prime 29.8 mm
- Frameset weight: 2710 g frame (size L, including TA, bracket) / 550 g fork (300 mm steerer, including TA)
- Maximum rider weight: 130 kg including luggage
Build Info:
- Bottom bracket standard T47 - 85.5 mm
- Headset standard (S.H.I.S.) EC34 / 28.6 | EC44 / 40
- Headset cone angle 45°
- Steerer tube inner diameter 23.6 mm
- Maximum fork tire clearance without fender: 650B x 57C / 700C x 57C
- Maximum frame tire clearance without fender: 650B x 52C / 700C x 40C
- Maximum chainring size 1x 44 T with 45 mm chainline
- Maximum chainring size 2x 50 / 36 T with 45 mm chainline
- Seatpost diameter 27.2 mm
- Seat clamp diameter 29.8 mm
- Front derailleur clamp diameter: 28.6 mm
- Front derailleur compatible: yes
- Front brake mount: FM 160 / 180
- Rear brake mount: FM 140 / 160
- Maximum front rotor spacing: 180 mm
- Maximum rear brake disc clearance: 160 mm
- Front thru-axle: 12 mm x 100 mm, 1.5 thread pitch
- Rear thru-axle: 12 mm x 142 mm, 1.5 thread pitch
Product safety information
Manufacturer information:
We Make Things GmbH
Richard-Byrd-Straße 12
Nordrhein-Westfalen
Köln, Deutschland, 50829
https://www.bombtrack.com/contact-bombtrack
https://www.bombtrack.com
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XS
|
|
|
|
XL |
| Sitzrohrlänge / Seat Tube Length (C-T) |
460 |
500 |
530 |
570 |
600 |
| Oberrohrlänge / Top Tube Length (horizontal) |
520 |
534 |
558 |
572 |
597 |
| Sitzrohrwinkel (°) / Seat Angle |
73,9° |
73,9° |
73,5° |
73,5° |
73° |
| Steuerohrwinkel (°) / Head Angle |
70,9° |
70,9° |
71,5° |
71,5° |
71,5° |
| Steuerohrlänge / Headtube Length |
110 |
130 |
150 |
170 |
190 |
| BB Drop |
71 |
71 |
66 |
66 |
66 |
| Kettenstrebenlänge / Chain Stay Length |
425 |
425 |
425 |
425 |
425 |
| Gabelvorbiegung / Fork Offset |
53 |
53 |
53 |
53 |
53 |
| Nachlauf / Trail |
64 |
64 |
61 |
60 |
60 |
| Radstand / Wheelbase |
1003 |
1018 |
1034 |
1049 |
1068 |
| Überstandshöhe / Standover |
753 |
782 |
805 |
834 |
857 |
| Reach |
360 |
369 |
381 |
390 |
403 |
| Stack |
558 |
577 |
593 |
612 |
631 |
Alle Angaben in mm sofern nicht anders angegeben / All measurements in mm unless otherwise stated
Irrtümer vorbehalten / Errors excepted