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United KL40 Expert BMX Bike-21"TT-Trans Blue

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About This Product: United KL40 Expert BMX Bike-21"TT-Trans Blue


The United KL40 Expert 2014 BMX bike features a 100% chromoly frame, improved frame and bar geometry, 28/9T gearing, ultra loud 4 pawl sealed female bolt cassette hub and a 2.35" indirect front tire.

Top tube Length: 21"
Chainstay Length: 13.7"
Headtube Angle: 74.5°
Seattube Angle: 71°

Recommended Rider Height: 5' 8" - 6'

FRAME: 100% 4130 cromo tubing, removable brake mounts and guides, integrated head tube, mid bb, embossed logo dt gusset, cnc brake bridge, 14mm dropouts
FORKS: 100% 4130 cromo, cnc steerer, integrated bearing race, tapered legs with angled ends, cnc dropout holes
HANDLEBARS: 8.65 in rise, 29 in wide, 12° back sweep, 1° up sweep, 100% 4130 cromo
GRIPS: United Alchemist Jimmy Rushmore signature, United nylon bar ends
HEADSET: United sealed bearing integrated
STEM: United 50mm reach top load stem with United logos and forged detailing
LEVER: Alloy
BRAKE: Tektro 990
CRANKS: 3pc 175mm, heat treated tubular cromo, 19mm 8 spline spindle
BB: United sealed bearing mid, 19mm
SPROCKET: United 28t, steel
PEDALS: Duo 'Resilite' Nylon
CHAIN: Taya 410, black
REAR RIM: Alloy 36h, double wall
FRONT RIM: Alloy 36h, aero profile, single wall
REAR HUB: 36h sealed alloy cassette, female axle, sealed bearing 9t driver, 4 pawl, ultra load mech
FRONT HUB: 36h sealed alloy, female 10mm axle
REAR TIRE: United Direct 20 x 2.1
FRONT TIRE: United Indirect 20 x 2.35
SEAT: United KL40 slim pivotal
SEAT POST: United alloy pivotal
SEAT CLAMP: Alloy with machined detail
PEGS: n/a

WEIGHT: 23.9lbs/10.84kg

NOTE: As with any complete bike, J&R Bicycles recommends that you have a professional bicycle store build your bike. Bikes ordered through mail-order come partially assembled and need to be inspected and assembled by a bicycle mechanic. Failure to do so may void the manufacture's warranty. Manufacture's warranties differ for every brand. You can check the brand's website for warranty information.

Additional Information

Barcode 028568
Special Shipping Group N/A

Complete Bike specifications and components may differ from photos and description. Manufacturers reserve the right to make changes and/or substitutions due to parts availability, production requirements and ongoing development decisions.

Need Some help Choosing a BMX Bike?

Selecting the right size BMX bike is vital for a smooth and delightful ride. At J&R Bicycles, we understand the BMX world inside out because we're passionate riders ourselves. Just reach out to us, and we'll be more than happy to assist you on your journey to finding the perfect BMX bike.

Curious to learn more? We've compiled a comprehensive BMX buyer's guide to demystify the process. Read on, and together, we'll uncover the BMX bike that perfectly matches your riding style and preferences.