Lowside - Blue Monday
Every bike is fully assembled, tuned, and test-ridden before pickup at your chosen DFW Bike Mart location.
Expected to ship within 3 days
Professionally built and test-ridden before it ships. Arrives mostly assembled with just minimal setup needed. See Reassembly Instructions
Delivered fully assembled and tuned by Bike Mart—ready to ride right at your doorstep within 10 miles of any DFW location.
Complete your Ride
What is the Bike Mart Return policy?
What is the Bike Mart Return policy?
Bike Mart offers a 14-day return and 30-day exchange policy in effect on qualifying items. Restocking fee may apply for "At Warehouse" Items. Read More
What Financing options does Bike Mart offer?
What Financing options does Bike Mart offer?
Financing is easier than ever at Bike Mart. With Synchrony Financial, you can choose:
- 0% APR for 6 months — on orders under $999
- 0% APR for 12 months — on orders of $1,000 or more
We also support HSA/FSA Funds with TrueMed, Shop Pay Installments and PayPal Financing.
Ship
Get your bike or equipment delivered to your home directly from Bike Mart via our FedEx or USPS Carrier partners. Adult signature is required for all bike deliveries and for equipment & gear deliveries over $500.
For orders that include a bike, it will be professionally pre-built and shipped to your home with minimal assembly needed. While we try to make it as easy as possible, basic mechanical skills and proper tools are required.
If you decide to take your bike to a local bike shop for assembly, additional fees will apply.
Pickup
We’ve made it easier than ever to get the gear and bikes you love—fast. With our Buy Online, Pick Up In Store (BOPIS) option, you can shop online and pick up your items at your convenience from any of our six DFW locations.
The best part about picking up at a Bike Mart location is that you get the same high quality service with the convenience of having the exact bike or part.
Bikes / Car Racks will be assembled and installed at no extra charge and might require additional processing time for assembly.
Delivery
When you select "Home Delivery" at checkout. Your bike will be professionally assembled and the closest Bike Mart store will call you to schedule the delivery.
We offer home delivery for bike purchases only within 10 miles of a Bike Mart location. Contact us if you live beyond 10 miles and we can discuss more options. Additional fees may apply.
In stock bikes will be delivered within 7 days. Warehouse bikes will delivered within 14 days*.
Overview
Overview
Your BMX Bike All Grown Up
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.
Lowside is a single speed mountain bike. Singlespeeding has been a part of Surly’s DNA since day one when we launched the 1x1 Rat Ride. After a lot of Homie Fall Fests and more feats of strength than we can recall, we decided to discontinue it a couple years back. Lowside picks up right where the 1x1 left off.
“Some have dubbed the Lowside the ultimate pub cruiser.”
- 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
Technical Specifications
Technical Specifications
| Frame | Surly Lowside - 4130 Chromoly, Natch tubing, double-butted main triangle, TIG welded, E.D. coated |
| Fork | Surly Lowside - 4130 Chromoly, Natch tubing, double-butted tapered fork blades, TIG welded, E.D. coated |
| Headset | FSA Orbit ITA, Silver |
| Seatpost clamp | Surly Stainless 33.1mm clamp |
| Seatpost | Promax SP-2019, Silver |
| Stem | Sunday Freeze Stem Top-Load, Silver |
| Grips/bar tape | Sunday Odyssey, clear |
| Saddle | WTB Volt Medium, silver rails |
| Handlebar | Surly Sunset (Painted to match frame) |
| Front derailleur | N/A |
| Rear derailleur | N/A |
| Cassette | Surly 17T Cog w/ Spacer Kit, silver |
| Chain | KMC X9 |
| Crankset | SRAM NX Eagle, 32t |
| Shifter | N/A |
| Brake levers | Tektro HD-M275/276 |
| Brake calipers | Tektro HD-M275/276, 2-piston |
| Bottom bracket | SRAM PowerSpline, BSA, 73mm |
| Rotors | Tektro 160/160mm, 6-Bolt |
| Front tire | Maxxis Rekon+ 27.5" x 2.8", 60 TPI, tan sidewalls, tubeless-ready, WTB TCS Sealant included |
| Rear tire | Maxxis Rekon+ 27.5" x 2.8", 60 TPI, tan sidewalls, tubeless-ready, WTB TCS Sealant included |
| Front hub | Novatec 15 x 110mm, silver |
| Rear hub | Novatec 12 x 148mm, silver |
| Spoke | 14g stainless, silver |
| Rim | WTB ST i35 TCS 2.0 27.5", 32h |
| Complete bike | 28 lb 1 oz for Medium |
Parts are subject to change without notice. Chat with us if you have any questions.
Geometry
Geometry
All measurements provided in mm unless otherwise noted; head tube angles are in degrees.
| Frame size | X-Small | Small | Medium | Large | X-Large |
| A. Effective Top Tube | 570.0 mm | 590.0 mm | 610.0 mm | 630.0 mm | 650.0 mm |
| B. Stand Over | 700.0 mm | 729.0 mm | 762.0 mm | 792.0 mm | 823.0 mm |
| C. Reach | 414.5 mm | 429.3 mm | 445.3 mm | 461.0 mm | 477.0 mm |
| D. Stack | 542.2 mm | 560.3 mm | 574.4 mm | 588.5 mm | 602.5 mm |
| E. Total Seat Tube Length | 316.0 mm | 366.0 mm | 416.0 mm | 466.0 mm | 516.0 mm |
| F. Headtube Length | 110.0 mm | 125.0 mm | 140.0 mm | 155.0 mm | 170.0 mm |
| G. Headtube Angle (degrees) | 70.0 | 70.0 | 70.0 | 70.0 | 70.0 |
| H. Seat Tube Angle (degrees) | 74.0 | 74.0 | 74.0 | 74.0 | 74.0 |
| I. BB Drop | 55.0 mm | 55.0 mm | 55.0 mm | 55.0 mm | 55.0 mm |
| K. Chainstay Length | 425.0 mm | 425.0 mm | 425.0 mm | 425.0 mm | 425.0 mm |
| L. Fork Length Axle to Crown | 420.0 mm | 420.0 mm | 420.0 mm | 420.0 mm | 420.0 mm |
| M. Fork Offset | 47.0 mm | 47.0 mm | 47.0 mm | 47.0 mm | 47.0 mm |
| N. Wheelbase | 1068.0 mm | 1089.0 mm | 1110.0 mm | 1131.0 mm | 1152.0 mm |
| Crank Arm Length | 165.0 mm | 165.0 mm | 165.0 mm | 170.0 mm | 170.0 mm |
| Handlebar Width | 820.0 | 820.0 | 820.0 | 820.0 | 820.0 |
| Recommended Rider Height (mm) | 142.0 | 152.0 | 165.0 | 175.0 | 185.0 |
| Stem Length | 48.0 mm | 48.0 mm | 48.0 mm | 48.0 mm | 48.0 mm |
This Geometry Chart is provided by the Manufactuer. Chat with us if you have any questions.




