Surly Lowside 2026

The Surly Lowside is an uncompromising 27.5+ single-speed MTB made from robust 4130 chromoly Natch tubing. Designed for maximum durability, trail fun and minimal maintenance. Ideal for riders looking for a purist hardtail with plus-sized tyres.

Sizes: XS, S, M, L, XL

Available

Specification: minor changes may apply

Frame & Fork

• Frame: Surly Lowside – 4130 chromoly, Natch Tubing, double-butted, TIG-welded, E.D.-coated
• Fork: Surly Lowside – 4130 chromoly, Natch Tubing, double-butted, tapered fork legs, TIG-welded, E.D.-coated

🟦 Components

• Headset: FSA Orbit ITA, silver
• Seatpost clamp: Surly Stainless 33.1 mm
• Seatpost: Promax SP-2019, silver
• Stem: Sunday Freeze Top-Load, silver
• Grips: Sunday Odyssey, clear
• Saddle: WTB Volt Medium, silver rails
• Handlebars: Surly Sunset (painted to match the frame)

🟦 Drivetrain

• Gear system: Singlespeed (no front derailleur, no rear derailleur)
• Cassette: Surly 17T steel sprocket incl. spacer kit, silver
• Chain: KMC X9
• Crankset: SRAM NX Eagle, 32T
• Bottombracket: SRAM PowerSpline, BSA, 73 mm
• Shift levers: N/A

🟦 Brakes

• Brake levers: Tektro HD‑M275/276
• Brake calipers: Tektro HD‑M275/276, 2-piston
• Brake discs: Tektro 160/160 mm, 6-hole

🟦 Wheels & tyres

• Front tyre: Maxxis Rekon+ 27.5" x 2.8", 60 TPI, Tanwall, tubeless-ready
• Rear tyre: Maxxis Rekon+ 27.5" x 2.8", 60 TPI, Tanwall, tubeless-ready
• Tubeless: WTB TCS sealant included
• Front wheel hub: Novatec 15 × 110 mm, silver
• Rear wheel hub: Novatec 12 × 148 mm, silver
• Spokes: 14g stainless steel, silver
• Rims: WTB ST i35 TCS 2.0, 27.5", 32-hole

🟦 Weight

• Complete bike (size M): 28 lb 1 oz (≈ 12.7 kg)

Character

The Lowside remains the iconic single-speed bike for trails, pump tracks and after-work rides. With its new ‘Blue Monday’ colour, it looks modern and minimalist, making a strong visual statement.

Technical specifications are subject to change without prior notice