The challenge was thus: Build a serious steel bike and give it only the attributes that matter most. Make it quick and comfortable on pavement, as well as confident and compliant on degraded surfaces. What the Enginerds put forth is Preamble, a pavement and gravel utility worker that proves you don’t need to cut corners or clip coupons to make a more affordable steel bike. You just need to keep shit simple.
Preamble can run racks and fenders and carry a couple water bottles. Surly was raised on stealing basic cable, after all. Smooth and efficient on asphalt, Preamble’s double-butted main triangle provides a resplendent ride feel and withstands abuse from life’s inevitable potholes. Make it your own with flat bars, drop bars, a basket, or bags. On the road to steel euphoria, Preamble is the gateway drug.
Let facts be submitted to a candid world:
- Easy T-Shirt sizing to fit nearly every rider (XS,S,M,L,XL)
- Sloping top tubes on XS and Small frames for improved standover and comfort
- To offer the best rider experience for every frame size, XS and S frames get 650b wheelsets while M–XL get 700c
- Custom-cast single-position vertical dropout
Tech specs:
- Tire Clearance Frame: Size XS-SM: 650b x 41 (w/ or w/o fenders) Size MD-XL: 700c x 41 (w/ or w/o fenders)
- Tire Clearance Fork: 650b: 650b x 42mm (w/ or w/o fenders) 700c: 700c x 42mm (w/ or w/o fenders)
- Frame Construction 100% Surly Chromoly steel, Natch tubing, double-butted main triangle, TIG welded, E.D. coated
- Fork Construction 4130 Chromoly, Natch tubing, double-butted tapered fork blades, TIG welded, E.D. coated
- Rigid Fork Length 380mm: XS-SM 400mm: MD-XL
- Fork Offset 47mm: XS-SM 44mm: MD-XL
- Rear Spacing "Gnot-Boost" 138mm Rear Axle Size 10 x 135mm or 10 x 141mm
- Rear Brake (Rotor) Disc - 51mm I.S. (180mm max rotor)
- Front Brake (Rotor) Disc - 51mm I.S. (203mm max rotor)
- Headset - Upper EC34/28.6 Headset - Lower EC34/30
- Front Spacing 10 x 100mm
- Steerer Tube Ø28.6mm
- Crown Race 30mm (1-1/8")
- Seatpost Ø27.2mm
- Dropper Post Compatible No
- Seatpost Clamp Ø30.0mm
- Front Derailleur Clamp High direct mount top-pull (Ø28.6mm) 26mm offset adapter (not included) for 135mm rear hub spacing 29mm offset adapter (not included) for 141mm rear hub spacing
- Bottom Bracket 68mm BSA, threaded
- Crankset (Max Ring) 1x (47CL): 42T 2x (47CL): 46/36T
- Bottle Mounts 2
- Standard Fork Mounts Fork crown and mid-blade rack Mounts
- Front Fender Mounts Yes
- Rear Fender Mounts Yes
Pictures of the complete bike are just for showing Purpose, scope of delievery is just he frameset!
Product safety information
Manufacturer information:
Surly Bikes
6400 W 105th Street
Minnesota
Bloomington, Vereinigte Staaten, 55438
derby@surlybikes.com
https://www.surlybikes.com
Responsible person:
Cosmic Sports GmbH
Leyher Str. 47
Bayern
Fürth, Deutschland, 90763
info@cosmicsports.de
https://www.cosmicsports.de
| |
|
|
M |
L |
XL |
| Sitzrohrlänge / Seat Tube Length (C-Top Top Tube) |
410 |
505 |
565 |
605 |
645 |
| Oberrohrlänge / Top Tube Length (effective) |
500 |
545 |
570 |
600 |
630 |
| Sitzrohrwinkel (°) / Seat Angle |
74° |
73° |
72,5° |
72° |
72° |
| Steuerohrwinkel / Head Angle (°) |
70° |
71° |
72° |
72° |
72° |
| Steuerohrlänge / Headtube Length |
120 |
135 |
130 |
170 |
210 |
| BB Drop |
54 |
54 |
66 |
66 |
66 |
| Kettenstrebenlänge / Chainstay Length |
420 |
420 |
435 |
435 |
435 |
| Gabelvorbiegung / Fork Offset |
47 |
47 |
44 |
44 |
44 |
| Radstand / Wheelbase |
987 |
1013 |
1030 |
1055 |
1085 |
| Überstandshöhe / Standover |
722 |
776 |
826 |
863 |
901 |
| Reach |
352 |
381 |
391 |
404 |
421 |
| Stack |
517 |
535 |
567 |
605 |
643 |
| empfohlene Fahrergröße / recommend rider height (cm) |
152,4 - 165,1 |
162,56 - 172,72 |
170,18 - 182,88 |
180,34 - 190,5 |
187,96 - 200,66 |
Alle Angaben in mm sofern nicht anders angegeben / All measurements in mm unless otherwise stated
Irrtümer vorbehalten / Errors excepted