The Rocky Mountain Solo is a rugged, adventure-oriented gravel platform designed to handle everything from multi-day bikepacking routes to aggressive trail riding. Introduced for the 2023 model year, this generation marks a significant departure from its predecessor by adding a carbon frame option alongside the traditional alloy models. The redesign leans heavily into mountain bike capability, built around massive tire clearance that accommodates up to 29 x 2.0-inch or 650b x 2.2-inch rubber.
Beyond the expanded tire capacity, the frame is engineered for maximum utility. It supports both 1x and 2x drivetrains, includes dropper post routing, and features an extensive array of mounting points across the frame and fork. With frame protection details and mountain-bike-level durability testing, the Solo is positioned for riders who want a single drop-bar bike capable of pushing well past smooth dirt roads into demanding, technical terrain.
| Stack | 567.4mm |
| Reach | 382.66mm |
| Top tube | 540mm |
| Headtube length | 130mm |
| Standover height | 787mm |
| Seat tube length | 452mm |
The Solo’s geometry blends modern gravel trends with subtle mountain bike influences, creating a posture that favors long-distance comfort and rough-terrain control. Across the size range, the head tube is kept relatively short, but a longer fork increases the overall stack height. This results in a slightly more upright, compact seated position that reduces rider fatigue during extended bikepacking trips or multi-hour trail rides.
Handling is dictated by a relatively long wheelbase and a notably low bottom bracket drop of around 75mm to 78mm, depending on the frame size. This low-slung design anchors the rider's weight, prioritizing stability through fast, sweeping corners and loose descents. To maintain agility, Rocky Mountain pairs this long front center with short 425mm chainstays, keeping the rear wheel tucked in for traction on steep climbs and maneuverability through tight singletrack.
The cockpit setup complements the frame's off-road intentions. Most builds feature an Easton handlebar with a moderate 16-degree flare, offering a wider stance for descending control without forcing the brake levers into an awkward, overly angled position.
Frameset
Frame
Rocky Mountain Smoothwall Carbon | BB386 | Zero Stack Tapered Headtube | Fully Guided Internal Cable Routing | Dropper Post Compatible | 142mm Dropouts | Sram UDH Compatible Rear Triangle
Fork
Rocky Mountain Carbon Gravel | Full Carbon Steerer | 100 x 12mm Axle | 3 Rack & Fender Mounts
Weight
19.8 LBS | 9 KGS
Groupset
Shift levers
Sram Rival AXS
Rear derailleur
Sram Rival XPLR AXS
Cassette
Sram XPLR XG-1251 10-44T
Chain
Sram Rival 12s
Crankset
Sram Rival 1 Wide | 42T | DUB Spindle | Crankarm Length: XS-SM = 170mm | MD = 172.5mm | LG-XL = 175mm
Bottom bracket
Sram BB386 DUB Wide
Front brake
Sram Rival
Rear brake
Sram Rival
Front rotor
Sram Paceline 160mm
Rear rotor
Sram Paceline 160mm
Wheelset
Front wheel
Easton EA70 AX 12 x 100mm; Straight Pull Double Butted 2.0/1.8/2.0
Rear wheel
Easton EA70 AX 12 x 142mm; Straight Pull Double Butted 2.0/1.8/2.0
Front tire
WTB Venture TCS Light Fast Rolling 700 x 40c
Rear tire
WTB Venture TCS Light Fast Rolling 700 x 40c
Cockpit
Stem
Rocky Mountain 31.8 XC | 7° Rise | XS = 60mm | SM = 70mm | MD = 80mm | LG = 90mm | XL = 100mm
Handlebars
Easton EA70 AX | 80mm Reach | 120mm Drop | Flare 16° | Width: 420mm XS | 440mm SM-MD | 460mm LG-XL
Saddle
WTB Silverado Race 142
Seatpost
Easton EC70 27.2mm
Grips
Rocky Mountain Gel Bar Tape
The Solo lineup is split between premium carbon models and more accessible alloy builds, spanning four primary tiers. The carbon frames feature a sculpted seat tube for added compliance and utilize a BB386 press-fit bottom bracket to maximize rear tire clearance. The alloy frames share the same core geometry and mounting capabilities but carry a slight weight penalty.
At the top end, the Carbon 90 BC Edition and Carbon 70 are equipped with wireless electronic shifting. The Carbon 70 pairs a SRAM Rival AXS XPLR drivetrain with Easton alloy wheels. While the 42-tooth chainring and 10-44 cassette provide a versatile range for general gravel riding, riders planning heavily loaded bikepacking trips in steep terrain may find the stock gearing slightly tall.
The alloy models deliver strong value for budget-conscious riders. The entry-level Alloy 30 features a reliable SRAM Apex 11-speed mechanical drivetrain, though it relies on cable-actuated mechanical disc brakes, which represent a functional but noticeable step down in stopping power compared to the hydraulic systems found higher up the ladder. Across all builds, the stock 40mm tires are competent, but the frames are clearly designed to accommodate much wider rubber.
Reviewers consistently praise the Rocky Mountain Solo for its balanced, highly capable ride feel across a wide spectrum of off-road conditions. The frame’s mountain-bike-inspired geometry translates to excellent high-speed stability, with testers noting it delivers "stable, confident riding on flat bumpy terrain and high-speed descents" (Cxmagazine). Despite this planted demeanor, the bike remains surprisingly responsive in tight sections. The carbon model feels "quite agile and handy" (Velomotion) on singletrack, while the entry-level alloy version "climbs like a billy goat" (YouTube) when pointed up steep pitches.
The most common critique centers on the low bottom bracket, which can lead to pedal strikes in technical terrain when running the stock 40mm tires. However, testers largely forgave this trait, finding that the "lower center of gravity is worth the occasional pedal strike" (Cxmagazine) for the cornering benefits it provides.
To realize the platform's full potential, reviewers universally recommend taking advantage of the massive frame clearance. Swapping the stock rubber for 45mm gravel tires or 2.2-inch mountain bike treads dramatically improves vibration damping and traction. While the carbon frame’s sculpted seat tube offers noticeable compliance, maximizing tire volume is the agreed-upon method for smoothing out the roughest adventure routes.
