• RMA is the perfect trail companion; an all-terrain ain bike ideal for trails, gravel paths and even paved streets; hardtail aluminum frame never rusts and is lighter than steel for easier acceleration and easier handling.
• Assembly video beside images - Arrives with bike assembly tools; 17-inch frame is suggested for minimum inseam of 28.25 inches; 15 inch frame is also available; front Zoom suspension fork smoothly absorbs shocks from bumps and dips.
• The Shimano EZ Fire Plus trigger shifter and Shimano Altus rear indexed derailleur deliver 21 speeds of ultra smooth shifting with just your index finger and thumb; it’s a complete Shimano drivetrain for precise, efficient performance.
• 27.5 inch wheels maintain rolling momentum; all-terrain tread provides less rolling resistance than typical ain bike tires; padded saddle can be easily adjusted for the right fit; slight-rise handlebar enables more upright riding posture.
• Alloy linear pull brakes; machined alloy wheel rims enable superior brake pad contact for consistent stops on demand; Kraton grips and pedals feel good and comfortable; limited 10-year frame warranty (kickstand not included).

For trails, for gravel paths, for paved streets – adventure awaits with the Royce Union RMA. let red with a clear gloss overcoat yields an exceptional, rugged look. The lightweight hardtail aluminum frame will never rust. Molded from tough 6061 heat-treated aircraft-grade aluminum, the frame is backed by our limited 10-year warranty (see owner’s manual for details). Durable aluminum, lighter than steel, makes this bike easier for uphill acceleration, easier for keeping momentum, and easier for gliding downhill. We deliver this bike with the tools you need to quickly finish assembly so you can ride! Choose the right size bike - Make sure your inseam is longer than 34.25 inches to fit the standover height for this 20-inch frame. Select 18, 20, or 22 inch frames for men, and 15 or 17 inch frames for women. An alloy quick release binder enables easy height adjustment of the padded saddle for a proper fit. The RMA delivers 21 speeds with a complete SHIMANO drivetrain. The SHIMANO EZ Fire Plus Trigger shifter combines with the SHIMANO Altus rear indexed derailleur to deliver efficient, precise shifting between gears. No twisting, no wrist strain. Instead, you can always keep your hands on the handlebar when riding, and merely use your index finger and thumb to trigger your shifting. So smooth, so easy. Removable rear derailleur guard protects gears from damage. Larger 27.5 inch wheels maintain rolling momentum; the all-terrain tread pattern provides less rolling resistance than typical ain bike tires. Alloy linear pull brakes with machined alloy wheel rims enable superior brake pad contact to deliver smooth, dependable stopping power. Krayton grips feel comfortable to the touch; the pedals on the alloy 3-piece crank provide a good, responsive feel. Front ZOOM suspension fork easily absorbs shock from bumpy trails and dips from uneven terrain, critical for a smoother, more enjoyable ride. The slight-rise handlebar encourages an upright, riding style so you enjoy more of the beautiful landscapes you encounter. Alloy front load 4-bolt stem with threadless headset is stronger and more rigid to handle any riding stress. 21 speeds, lightweight aluminum frame, ultrasmooth trigger shifting, all-terrain tires – the RMA has all you’ve wanted in a ain bike. Stop searching, and get ready to ride! Passionate about the outdoors? Welcome to Royce Union ain bikes. Since 1904.