Overview
Your BMX Bike All Grown Up
The Lowside is the bike that gets you across town for a quick rip on singletrack, then over to the bar for a night out. It’s the bike you turn to when you’re not entirely sure what the night has in store. It’s the bike to grab when you want to have just much fun riding to the trail as you do from the trail itself. Singlespeeding is an integral part of Surly’s DNA, and the Lowside continues the tradition, by taking a simpler approach to trail riding.
The Lowside is like the grownup version of the bike you rode when you were a kid and still had hopes and dreams and some semblance of ambition. It’s just as happy riding singletrack as it is parked outside your favorite drinking establishment.
Features
Modern trail standards: dropper post compatibility, 44mm headtube, Gnot-Boost rear spacing, thru-axles
Compatibility with most mountain bike standards makes it the perfect parts bin bike (no rim brakes allowed though)
Spec’d with 27.5 x 2.8” Maxxis Rekon+ tires; also capable of running 26 x 3″ tires
Color-matched Surly Sunset handlebar with silver components
Specs
| Frame measurements (mm) | XS | SM | MD | LG | XL |
|---|---|---|---|---|---|
| A. Effective Top Tube | 570 | 590 | 610 | 630 | 650 |
| B. Stand Over | 700 | 729 | 762 | 792 | 823 |
| C. Reach | 415 | 429 | 445 | 461 | 477 |
| D. Stack | 542 | 560 | 574 | 589 | 603 |
| E. Total Seat Tube Length | 316 | 366 | 416 | 466 | 516 |
| F. Headtube Length | 110 | 125 | 140 | 155 | 170 |
| G. Headtube Angle | 70 | 70 | 70 | 70 | 70 |
| H. Seat Tube Angle | 74 | 74 | 74 | 74 | 74 |
| I. BB Drop | 55 | 55 | 55 | 55 | 55 |
| J. BB Height | – | – | – | – | – |
| K. Chainstay Length | 425 | 425 | 425 | 425 | 425 |
| L. Fork Length Axle to Crown | 420 | 420 | 420 | 420 | 420 |
| M. Fork Offset | 47 | 47 | 47 | 47 | 47 |
| N. Wheelbase | 1068 | 1089 | 1110 | 1131 | 1152 |
| Component measurements (mm) | |||||
| Crank Arm Length | 170 | 170 | 175 | 175 | 175 |
| Handlebar Width | 820 | 820 | 820 | 820 | 820 |
| Stem Length | 48 | 48 | 48 | 48 | 48 |
* All dimensions are preliminary and subject to change
Frame & Fork
Frame: Surly Lowside — 4130 Chromoly, double-butted main triangle, TIG welded, E.D. coated
Fork: Surly Preamble — 4130 Chromoly, double-butted tapered blades, TIG welded, E.D. coated
Color: Blue Monday
Drivetrain
Crankset: SRAM NX Eagle, 32T
Bottom Bracket: SRAM PowerSpline, BSA 73mm
Rear Cog: Surly 17T (with spacer kit)
Chain: KMC X9
Front Derailleur: N/A
Rear Derailleur: N/A
Shifter: N/A
Brakes
Brakes: Tektro HD-M275/276, 2-piston hydraulic disc
Rotors: Tektro 160mm / 160mm (6-bolt)
Cockpit & Components
Handlebar: Surly Sunset (color-matched)
Grips: Sunday Cornerstone, clear
Stem: Sunday Freeze Top-Load, silver
Headset: FSA Orbit ITA, silver
Seatpost: Promax SP-2019, silver
Saddle: WTB Volt Medium, silver rails
Wheels & Tires
Rims: WTB ST i35 TCS 2.0, 27.5″, 32h
Front Hub: Novatec, 15×110mm, 32h, 6-bolt, silver
Rear Hub: Novatec, 12×148mm, 32h, 6-bolt, silver
Spokes: 14G stainless, silver
Tires: Maxxis Rekon+ 27.5 × 2.8″, 60 TPI, tan sidewalls, tubeless ready
(WTB TCS sealant included)
Other
Pedals: N/A
Weight: 28 lbs 1 oz (Medium)
Specifications subject to change without notice.
Warranty
Register your purchase at Surly’s Warranty Registration.
LIMITED WARRANTY FOR THE SURLY PREAMBLE
This Surly product is warranted against defects in materials and workmanship for three years from the date of retail purchase of the product, subject to the limitations detailed below. Save your dated receipt for proof of purchase.
This warranty does NOT cover the following:
- Damage due to improper assembly or follow-up maintenance or lack of skill, competence or experience of the user or assembler
- Products that have been modified, neglected, used in competition or for commercial purposes, misused or abused, involved in accidents or anything other than normal use
- Installation of components, parts or accessories not originally intended for or compatible with bicycle as sold
- Damage or deterioration to the paint, surface finish, aesthetics or appearance of the product
- Normal wear and tear
- Labor required to remove and/or refit and re-adjust the product within the bicycle assembly
This limited warranty is expressly limited to the repair or replacement of a defective product, at the option of Surly, and is the sole remedy of the warranty. This limited warranty applies only to the original purchaser of the Surly product and is not transferrable. This warranty applies only to products purchased through an authorized dealer or distributor. In no event shall Surly be liable for any loss, inconvenience or damage, whether direct, incidental, consequential, or otherwise resulting from breach of any express or implied warranty or condition, of merchantability, fitness for a particular purpose, or otherwise with respect to our products except as set forth herein.
This limited warranty gives the consumer specific legal rights, and those rights and other rights may vary from place to place. This limited warranty does not affect your statutory rights.
TO THE EXTENT NOT PROHIBITED BY LAW, THESE WARRANTIES ARE EXCLUSIVE AND THERE ARE NO OTHER EXPRESS OR IMPLIED WARRANTIES OR CONDITIONS INCLUDING WARRANTIES OR CONDITIONS OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.