Critical Cycles - Beaumont 7-Speed Diamond City Bike Charcoal / 50cm / s, Critical Cycles - 5

Beaumont 7-Speed Diamond City Bike

$ 299.99 $ 219.99
Suggested Height:
5'2" - 5'9"
size chart geometry chart
Add to wishlist
Our latest offering in city-dwelling transportation has something for every type of rider, riding on any type of urban terrain. Combat Bay Area inclines, flat Chicagoland boroughs, and all else in between with a classic retro style and ease of a top-notch hybrid city bike ride. Combined with front and rear alloy brakes, the Shimano 7-speed drivetrain and RevoShift grip shifters ensure the utmost control and precision. 



The Frame

We stuck to the classic tried-and-true diamond shape in this lightweight, hand-built, high-tensile strength steel frame with rack & fender braze-ons. Unlike the heavier materials found in other bikes, a steel frame means you get an absorbent, softer ride, ideal for your daily commute.

The Parts

Between the seven-speed Shimano Rear derailleur and the RevoShift grip shifter, you can do just about anything on this sublime commuting machine. The Shimano drivetrain is one of great prestige. Shift gears with precision and speed. The shifter is integrated into the grips on the handlebars, which means you never have to compromise control of your bike or ride. Simply twist your wrist to switch gears. The Beaumont-7 city bike also has front and rear alloy brakes for responsive stopping and safer rider. 

The bottom bracket is sealed, protecting the fragile pieces of the bike from getting damaged or dirty. This sealed mechanism keeps out dirt, water, and muck and also reduces the amount of necessary maintenance over the bike’s lifetime.

The Pieces

Beaumont 7-Speed Diamond City Bike has extra robust 700x35C Wanda tires for reliable gripping and improved shock absorption. 

These tires are resilient against potholes and uneven ground. Plus Wandas have unique water dispersion tread, which evenly distributes water, resulting in a better grip in damp conditions.

*All of our bikes have a weight limit of 220 lbs.

*Due to differences in screen resolutions, please note that colors may differ slightly.

Included Accessories
Chain guard, Center Mount Kickstand, Classic Bell, Fenders, & Tools
Extra-Soft Brown Rubber
Synthetic Leather
Lightweight Hand-Built Diamond High-Tensile Strength Steel Frame with Rack & Fender Braze-Ons
Lightweight Hand-Built Classic Urban Fork
Bottom Bracket
Neco Sealed Cartridge Bearing 110.5mm
Neco 1-1/8” Steel
Alloy Riser City Bars 620mm, 60mm rise, 15° sweep, 25.4 Center
Alloy 30° Rise, 220mm, 25.4 Clamp
Shimano 7-Speed Revoshift Grip-Twist Shifter
Brake & Lever
Alloy Dual Caliper Brake & Alloy Four Finger Lever
700c Stars Deep-V Double-Wall Alloy Rim 30mm 32H with machined sidewall
Front Hub
KT 100mm spacing, 32H
Rear Hub
KT 135mm spacing, 32H
Shimano TX35
Kenda Kwest 700 x 32c
Kenda 700 x 32c, Schrader Valve
Protek Alloy 170mm, 44T Chainring
KMC Z410, 1/2" 1/8"
Seat Post
Alloy 25.4 x 300mm
Seat Clamp
Alloy 28.6
Urban Pedal Alloy 1/2"


Shipping on all orders over $65 heading anywhere within the contiguous U.S. is free. Shipping on orders under $65 will cost a flat rate of $7.98. You can also choose to have signature required when your products are delivered for an additional $5.98.

We try really hard to ship all orders within 1 business day, but sometimes we're backed up. Most orders will go out within 3 business. Your order will be delivered within 1-5 business days.

We ship most of our orders out through FedEx. Keep this in mind when you're choosing a shipping method. If you don't request a signature and you're not home when FedEx arrives, it is left up to the driver's discretion to leave the package or not. Sometimes we send smaller orders out through USPS.

Check out more information about our shipping policies here.

Returns Policy

Great news! We offer a 50 day return policy! Returns are accepted for the full product credit if received at our warehouse within 50 days of the date of purchase in the original packaging that is still in retail condition.

Please bear in mind that our refunds do not include reimbursement of shipping fees.

Check out more information regarding our return policy here.

Recently Viewed Products