Bike details
Overview
Key information split into simple groups.
Bike summary
-
Category -
Frame Steel -
Wheels 700c -
Groupset microSHIFT, microSHIFT Acolyte -
Suspension Rigid -
Drivetrain 1 × 8 -
Brakes Mechanical Disc
Sizing
Recommended size guide.
XS
152cm - 165cm
XS
152cm - 165cm
SM
162cm - 172cm
SM
162cm - 172cm
MD
170cm - 182cm
MD
170cm - 182cm
LG
180cm - 190cm
LG
180cm - 190cm
XL
188cm - 200cm
XL
188cm - 200cm
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
Surly Preamble, 100% Chromoly steel tubing, E.D. coated
Suspension Fork
Surly Preamble, 100% Chromoly steel fork, Disc Only
Drivetrain
Rear Derailleur
microSHIFT RD-M5185M
Front Derailleur
N/A
Shift Levers
microSHIFT Acolyte Xpress
Cassette
microSHIFT 12-42t, 8-speed
Crank
Samox, 3-piece, 40t
Bottom Bracket
JIS 68 x 124.5mm
Chain
KMC Z8.3
Wheels
Front Hub
Novatec, 6-bolt disc, 32h, QR
Rear Hub
Novatec, 6-bolt disc, 32h, QR
Rims
21mm, 32h, Tubeless Compatible
Tires
Kenda Kwik Tendril 700c x 35mm (MD/LG/XL) & Kenda Standard 650b x 1.35 (XS/SM)
Brakes
Brakes
Avid BB5 Mechanical
Brake Levers
Avid FR-5
Cockpit
Stem
Kalloy 31.8
Handlebar
Kalloy, 35mm rise, 9-degree backsweep
Headset
VP 1-1/8" Threadless
Seat
Saddle
Selle Italia X-Base
Seatpost
Kalloy 27.2 x 300mm
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | XS | XS | SM | SM | MD | MD | LG | LG | XL | XL |
|---|---|---|---|---|---|---|---|---|---|---|
| Stack Reach Ratio | 1.48 mm | 1.48 mm | 1.41 mm | 1.41 mm | 1.46 mm | 1.46 mm | 1.51 mm | 1.51 mm | 1.54 mm | 1.54 mm |
| Bottom Bracket Height | 282 mm | 282 mm | 282 mm | 282 mm | 270 mm | 270 mm | 270 mm | 270 mm | 270 mm | 270 mm |
| Front Center | 573 mm | 573 mm | 599 mm | 599 mm | 604 mm | 604 mm | 629 mm | 629 mm | 658 mm | 658 mm |
| Rake | 47 mm | 47 mm | 47 mm | 47 mm | 44 mm | 44 mm | 44 mm | 44 mm | 44 mm | 44 mm |
| Trail | 72 mm | 72 mm | 66 mm | 66 mm | 63 mm | 63 mm | 63 mm | 63 mm | 63 mm | 63 mm |
| Stack | 510 mm | 510 mm | 528 mm | 528 mm | 560 mm | 560 mm | 598 mm | 598 mm | 636 mm | 636 mm |
| Reach | 345 mm | 345 mm | 374 mm | 374 mm | 384 mm | 384 mm | 397 mm | 397 mm | 414 mm | 414 mm |
| Seat Tube Angle | 74 ° | 74 ° | 73 ° | 73 ° | 72.5 ° | 72.5 ° | 72 ° | 72 ° | 72 ° | 72 ° |
| Seat Tube Length | 410 mm | 410 mm | 505 mm | 505 mm | 565 mm | 565 mm | 605 mm | 605 mm | 645 mm | 645 mm |
| Head Tube Angle | 70 ° | 70 ° | 71 ° | 71 ° | 72 ° | 72 ° | 72 ° | 72 ° | 72 ° | 72 ° |
| Head Tube Length | 120 mm | 120 mm | 135 mm | 135 mm | 130 mm | 130 mm | 170 mm | 170 mm | 210 mm | 210 mm |
| Chainstay Length | 413 mm | 413 mm | 413 mm | 413 mm | 428 mm | 428 mm | 428 mm | 428 mm | 428 mm | 428 mm |
| Wheelbase | 980 mm | 980 mm | 1006 mm | 1006 mm | 1023 mm | 1023 mm | 1048 mm | 1048 mm | 1078 mm | 1078 mm |
| Bottom Bracket Drop | 54 mm | 54 mm | 54 mm | 54 mm | 66 mm | 66 mm | 66 mm | 66 mm | 66 mm | 66 mm |
| Standover Height | 715 mm | 715 mm | 769 mm | 769 mm | 819 mm | 819 mm | 856 mm | 856 mm | 894 mm | 894 mm |
| Wheels | 700 | 700 | 700 | 700 | 700 | 700 | 700 | 700 | 700 | 700 |
| Rider Min Height | 152 cm | 152 cm | 162 cm | 162 cm | 170 cm | 170 cm | 180 cm | 180 cm | 188 cm | 188 cm |
| Rider Max Height | 165 cm | 165 cm | 172 cm | 172 cm | 182 cm | 182 cm | 190 cm | 190 cm | 200 cm | 200 cm |
About this model
Preamble Flat Bar completes the Surly Preamble model. There are 3 bikes that carry this model name. Check out the entire range from 2023 of this model, by clicking this link.
Model range prices
Surly Preamble Flat Bar 2023 is the most affordable bike of this model and has a price of 899$. On the other hand, Surly Preamble Drop Bar 2023, is the most expensive and costs 899$.
Safety
When you go for a ride, don’t forget to put your helmet on. Moreover, ride with traffic, not against it. This will help you stay visible to drivers and also makes it easier for them to see you.
General Road bikes average price
According to our calculations, the average cost of a General Road bike that is reliable is 1915$. However, this doesn’t mean that if you spend less money on a General Road bike, you couldn’t get a decent one. In short, before purchasing your ideal bike do some research about its components, and also check for reviews online.
When Surly released this model in 2023, its price was 899$. Comparing this to the average General Road bike price, we see that the price is 113.01% lower.
Preamble Flat Bar components
Fork material
Preamble Flat Bar has a steel fork, which tends to be more flexible than carbon forks in general. However, a carbon fork is considerably lighter.
Wheels
When leaving the production line, the Preamble Flat Bar model has 700c aluminum wheels. These are the most popular wheels for road, aero, gravel, cyclocross, race, and gravel bikes. However, these wheels don’t perform so well when passing over obstacles.
Brakes
We ride faster and faster, so a good braking system is essential on a bike nowadays. The Preamble Flat Bar comes with Mechanical Disc brakes. These brakes are also very popular, and a lot cheaper than hydraulic disk brakes. However, performance-wise there is room for improvement.
Sizes
This bike is available in 10 sizes. They vary from 152 cm – 200 cm (4.99 ft – 6.56 ft). In conclusion, finding one for you shouldn’t be a problem.