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United Martinez BMX Bike-20.5"TT-Black

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About This Product: United Martinez BMX Bike-20.5"TT-Black


The United 2015 Martinez complete bike built with the kind of geometry for comfortable riding featuring sealed bearings and double wall rims.

Top tube Length: 20.5"
Chainstay Length: 13.25"
Headtube Angle: 75°
Seattube Angle: 71°

Recommended Rider Height: 5' 2" - 5' 9"

FRAME: 4130 cromo down tube, welded brake mounts and guides, integrated head tube, mid bb, embossed logo top and downtube gussets
FORKS:Cromo cnc steerer tube, integrated bearing race, tapered 1020 hi tensile steel legs with angled ends
HANDLEBAR: 8.85 in rise, 28.5 in wide, 10° back sweep, 2° up sweep, 1020 hi ten steel
GRIPS: United flangeless, United nylon ends
HEADSET: United sealed bearing integrated
STEM: United 50mm reach top load stem with United logos and forged detailing on sides and top plate
LEVER: Alloy
BRAKE: 990
CRANKS: 3 pc 170mm, tubular cromo, 19mm 8 spline spindle, stamped United logo
BB: United sealed bearing mid, 19mm
SPROCKET: United 25t, steel
PEDALS: United Valentino Nylon
CHAIN: United Supreme X410
REAR RIM: Alloy 36h, double wall
FRONT RIM: Alloy 36h, double wall
REAR HUB: 36h United Supreme sealed alloy cassette, 14mm axle, sealed bearing 9t driver, 4 pawl, ultra load mech
FRONT HUB: 36h alloy, sealed bearing, 10mm axle
REAR TIRE: United Direct 20 x 2.4
FRONT TIRE: United Direct 20 x 2.4
SEAT: United Martinez medium pivotal
SEAT POST: United alloy pivotal
PEGS: 2 x steel 100mm

WEIGHT:  24.9 lbs / 11.29 kg

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 030754
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.