Atlas 21s | Matte Forest Green
Atlas 21s | Matte Forest Green
Atlas 21s | Matte Forest Green
Atlas 21s  | Matte Granite Blue
Atlas 21s  | Matte Granite Blue
Atlas 21s  | Matte Granite Blue
Atlas 21s | Matte Forest Green
Atlas 21s  | Matte Granite Blue
9 reviews

Atlas 21s

Regular price $299.99 Learn more
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16in - S
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$299.99
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$549.99
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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
Specs

Take a load off

Quick and easy gear changes

Work it out
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.
Work it out
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.
Frameset
  • 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
Wheelset
  • 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
Extras
  • Kickstand Center-mount, steel
Drivetrain
  • 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
Components
  • 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
Size Height Range Standover Height
S - 16IN 5'5"-5'8" 29.5"
M - 19IN 5'9"-5'11" 31"
L - 22IN 6'+ 32"
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:

  1. Stand upright with your feet 6-8" apart.
  2. Using a tape measure or tailor tape, measure from the bottom of your foot to the top of the inside of your leg.
  3. 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.

Get everything you need to start moving

Customer Reviews
4.8 Based on 9 Reviews
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CR
11/26/2020
Carrie R.
United States United States
best bike!

Seriously, this is the most comfortable bike ever. Super easy to assemble (and this was my first time ever putting together a bike). I use it to ride to work and it’s the perfect smooth ride!

AV
08/17/2020
Alix V.
United States United States
Fantastically pleased

I have been wanting a Retrospec bike for awhile to commute in the city. I was so happy to get this bike. It handles Philly roads very well and is comfortable on long bike rides. Very much pleased with my purchase and I recommend this brand of bike to everyone!

RP
08/17/2020
Ryan P.
United States United States
love the bike but need to somehow raise handlebars

I really like the bike and I feel like it's a good fit for my size but I really need to find out how to raise the handlebars. My lower back hurts after long rides and it doesn't look like I can raise these handlebars.

SP
08/15/2020
Stephen P.
United States United States
Retrospek

Kind of wish it had shocks but overall a very good fast bike

CC
08/15/2020
Christopher C.
United States United States
Great bike for the price

Overall the bike is great for the price and I’m happy with the quality. Recently purchased another bike from the site too.