The Muirwoods 29er is the big-wheeled brother of the Urban family. Offering the toughness of a mountain bike-based cromoly frame and fork with an updated geometry and component selection, this bike is designed for riders wanting some fun on their commute. From jumping curbs and train tracks to adventuring the dirt roads on the outskirts of town, the Muirwoods 29er can take it. A 24-speed Shimano Altus and Alivio drivetrain provides the perfect gear regardless of terrain while Tektro hydraulic disc brakes provide dependable braking performance regardless of weather conditions.
Frame layouts designed to maximize the inherent benefits of 29-inch wheels, which emphasize speed, stability, and traction. 29ers came about as cross country racers were looking for a wheel size that would roll more easily across terrain features (bumps, roots, etc). The larger diameter wheel decreases the angle between the tire as it rolls forward, and bumps, roots, and rocks, as they present themselves in front of the tire. This means that the tire is slowed down less as it overcomes the obstacle, which translates into less resistance to the rider. 29" platforms take maximum advantage of this larger wheel size to provide efficient pedalling to maximize rider output and performance.
3M Reflective Decals
Urban bike frame treatment that utilizes a special reflective decal application. These decals are scratch resistant and maintain the base color of the frame under natural light to offer a stealthy appearance. Once illuminated by the lights of a car, street lamp or other bikes, a reflective prism element in the decals bounce the light back, resulting in a bright outline of the decal panels on the frame for maximum visibility in dark conditions.
Security Skewer System
Integrated wheel and seatpost skewers included on Marin Urban and Speed Commuter models with specially designed heads that require a dedicated tool for operation, deterring possible theft of parts. Special removable hex wrenches are included with each bike for fastening. CNC’d aluminum sleeves encase the bolt heads to prevent loosening with pliers or vise grips.
Specs and pricing are subject to change without notice. Weights may vary based on size and parts.
|Bike Frame Specs|
|Frame:||Double Butted Cromoly 29er with Edge II Tubing with Internal Headtube, Double Butted E4 Anti-Flex Seat and Chain Stays||Suspension/Fork Specs|
|Front Fork:||Straight Blade Steel Rigid 29er Disc, 1 1/8”|
|Crankset:||TruVativ E350-A1 48/38/28T|
|Derailleur Rear:||Shimano Alivio|
|Shift Lever:||Shimano Acera Rapid Fire Plus, 8-Speed|
|Derailleur Front:||Shimano Altus|
|Cassette:||Shimano HG31, 11-32, 8-Speed|
|Bottom Bracket:||Sealed Cartridge|
|Hub Rear:||Formula, 32 Hole with Locking QR|
|Hub Front:||Formula, 32 Hole|
|Rim:||Alex TD-20, Double Wall|
|Spokes Nipples:||14 Gauge Black Stainless|
|Tires:||Schwalbe Citizen 29x1.6 with Kevlar Guard Puncture Protection|
|Brakes Front:||Tektro HD-M300 Hydraulic Disc, 7” Rotor|
|Brakes Rear:||Tektro HD-M300 Hydraulic Disc, 6” Rotor|
|Brake Levers:||Tektro HD-M300 Hydraulic|
|Handlebar:||Double Butted 6061 Alloy, OS-31.8mm, 25.4mm Rise|
|Stem:||Marin Alloy, Threadless|
|Headset:||FSA, 1 1/8|
|Seatpost:||Marin Alloy Micro Adjust, 400mm|
|Head Tube Angle||71.0||72.0||72.5||72.5||72.5|
|Stem Length (mm)|
|Head Tube Length (mm)||123/4.8||123/4.8||133/5.2||143/5.6||163/6.4|
|Seat Tube Angle||74.0||74.0||73.5||73.5||73.5|
|Seat Tube Angle Virtual|
|Seat Tube Actual||381.0/15||431.8/17||482.6/19||520.7/20.5||558.8/22|
|Crank Length (mm)|
|Top Tube Actual (mm)||558.4/22||568.5/22.4||581.3/22.9||593.9/23.4||610.4/24|
|Top Tube Effective (mm)||575/22.6||590/23.2||605/23.8||615/24.2||630/24.8|
|Stand Over Height||743/29.3||778/30.6||810/31.9||835/32.9||863/34|
|Chain Stay (mm)||445/17.5||445/17.5||445/17.5||445/17.5||445/17.5|
|Seat Post (mm)||27.2||27.2||27.2||27.2||27.2|