Atlas 21s

Atlas 21s
Atlas 21s
Atlas 21s
Atlas 21s


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Atlas is designed for sporty speeding, weekend workouts, and bike path pursuits.

A lightweight, hand-built 6061 aluminum frame
Designed for long rides and breaking a sweat
21 speeds to support your most intense rides

Atlas’ sporty, aerodynamic frame design supports an upright riding positioned to reduce strain on your back. Constructed from 6061 aluminum, this lightweight bike is perfect for weekend treks across your city or squeezing in a quick workout before dinner plans.

Atlas’ Shimano Tourney 21-speed drivetrain is equipped to handle your hilliest rides. Easily switch gears and tackle steep inclines and flat sprints with a flick of your wrist.

Atlas has your back at every sharp corner, quick stop, or steep hill that comes your way. We added Shimano Revo twist shifters for easy gear transitions, puncture-resistant tires to protect from debris, and linear-pull brakes on machined brake tracks for extra-responsive stopping.


Frame Hand-built 6061 aluminum alloy frame with two sets water bottle braze-ons, rear rack braze-ons, and replaceable rear derailleur hanger
Fork Unicrown, Threadless, 2x eyelets

Rims Retrospec aluminum double-wall 32H, 20mm apex section, precision machined brake tracks with wear indicator
Hubs Aluminum alloy, ball-bearing, 32H, QR
Spokes 14G UCP
Tires Retrospec 700 x 35C all-season, S/V valves


Kickstand Center-mount, steel


Rear Derailleur Shimano Tourney 7S
Front Derailleur Shimano Tourney
Shifters Shimano Revoshift (twist) 21S, RS35
Crank Aluminum alloy 170mm x 28/38/48T
Chain KMC Z-series 1/2 x 3/32"
BB Sealed Cartridge 68 x 122.5mm
Freewheel/Cog Shimano Tourney 500, 7S MegaRange 14-34T


Headset 1 1/8" (28.6mm) steel, Threadless
Brakes Aluminum alloy linear side-pull calipers & brake levers
Handlebars Aluminum alloy Riser - 24 1/2" width x 1 3/8" rise (600-620width x 35rise mm)
Grips Retrospec Comfort
Stem Aluminum alloy Threadless, 100mm (20-22"), extension/7⁰ degree rise, 40mm rise
Saddle Retrospec Sport Comfort
Seatpost Aluminum 27.2 x 300mm/Diamond, 400mm/StepThru
Seatpost Clamp Aluminum alloy QR
Pedals High Impact, Reinforced Nylon Resin Platform, 9/16"
Recommended Weight Limit 250 LBS

What's My Size?

Your inseam can help you find the perfect sized bike (measuring it properly is similar to pant inseams but measured a little differently). Here's how they work:

Stand upright with your feet 6-8" apart.
Using a tape measure or tailor tape, measure from the bottom of your foot to the top of the inside of your leg. Compare your inseam measurement to the standover height of the bike. You should have about an inch of space between your body and the top tube.


Availability In Stock

Exclusively offering purchase by Store Pickup, and by Phone Order. Orders can not be placed online for this product.

Buying Options

1. Visit us In-Store for the full MHO Experience, Check out the product's details, and Purchase in person. Find a Store

2. Place your Order by Phone: 1-877-557-5322




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