Surly Grappler Steel Gravel Bike – 27.5″ Sage Green Adventure Touring

The Surly Grappler is engineered for riders seeking the agility of a mountain bike paired with the versatility of drop bars. Designed to conquer everything from technical singletrack to dusty fire roads and loaded bikepacking routes, this trail-ready machine combines rugged durability with precise handling. Built on Surly’s signature 100% chromoly steel frame and fork—crafted using their proprietary ’Natch tubing—the Grappler offers a smooth ride thanks to its double-butted main triangle construction. The geometry prioritizes stability without sacrificing playfulness, making it ideal for navigating rough terrain while maintaining control at higher speeds. Whether you’re tackling an all-day gravel grind or a weekend backpacking adventure, the Grappler’s horizontal-slotted dropouts and Gnot-Boost spacing (supporting 142mm or 148mm hubs) ensure compatibility with both modern drivetrains and traditional single-speed setups.

For off-road comfort and utility, this bike excels. It accommodates 27.5 x 2.8” tires (with fender options) for grip on loose surfaces and includes three integrated down tube mounts for gear storage, plus seatstay bottle bosses for hydration on the go. A stealth dropper post routing system keeps your setup clean while adapting to technical sections effortlessly. An E.D.-coated finish enhances longevity against harsh conditions, perfect for riders who demand reliability on extended trips or frequent trail use.

The Grappler’s build kit balances performance and practicality: Microshift’s wide-range 11–48t cassette pairs with reliable Novatech hubs and WTB ST i40 rims for smooth power transfer, while Tektro brakes deliver confident stopping power even when loaded with gear. Its Salsa Cowchipper handlebar and TransX dropper post create a responsive cockpit tailored for mixed terrain adventures.

Who It’s For: Perfect for trail riders craving drop-bar control, gravel grinders seeking off-road prowess, or bikepackers needing a sturdy platform for lightweight expeditions.

Compare: Surly Grappler vs. Competitors
| Feature | Grappler | Competitor A | Competitor B |
|———————–|———————————–|———————————-|———————————-|
| Frame Material | 100% Chromoly Steel (ED coated) | Aluminum | Carbon |
| Geometry | Aggressive Trail | Relaxed Road | Neutral |
| Tire Clearance | 27.5 x 2.8” (fender-compatible) | 27.5 x 2.4” | 700c x 42mm |
| Hub Compatibility | Gnot-Boost (142/148mm) | Boost Only | Standard Only |
| Mounting Options | 3-Pack + Bottle Bosses | Minimal Mounts | No Down Tube Mounts |

Sizing Guide:
XS: 5’ – 5’5”
SM: 5’4” – 5’8”
MD: 5’7” – 6’0”
LG: 5’11” – 6’3”
XL: 6’2” – 6’6”

Whether you’re chasing flowy singletrack or packing light for a remote loop, the Grappler’s blend of strength, adjustability, and trail-focused design makes it a standout choice for riders who refuse to compromise between speed and capability.