grump double barrel bmx 29
in

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Bike Of The Day: Grump Double Barrel 29 Inch BMX Cruiser

Today’s Bike Of The Day is a sick Grump Double Barrel submitted by Donald Bray! I saw this one posted on the Grump Facebook page and had to featured it!

Be sure to give this bike a rating for the Bike Of The Month and Bike Of The Year charts via the sliders below

I have been building BMX race bike frame and forks for my son Paul from when he started racing when 11 years old to now he is 45 years old still at it . .. everyone was telling me to do a 29er ..we both don’t like the look … Old man’s bike we recon . anyhow i had a go ..we built a couple of mockup dummy one’s and cut and changed the geometry simply to the feel of Paul’s advice.. still don’t know any of the angles and geo Haven’t measured it … most of the part’s we had from other projects except for the wheels and cranks and pedels …

We tried this combination on the local track and were very impressed… working very good..

~Donald Bray

Parts List:

  • Novatec disc hub 36 spoke 135 mm wide and 50 mm chain line…
  • i built the frame to fit the hub’s..
  • Velocity rims ..
  • Maxxis 2.00 BMX tyres …
  • Redline 180 cranks..
  • RockBros pedels..
  • Profile B/B ..
  • DRS 5.5 inch Bars ….
  • Neco head set ..
  • the rest was left overs .. don’t know what they are ..

Tubing:

  • The frame weight is 6 3/4 pounds ..
  • top tubes are Plymouth Promoly…….
  • 1-1/4 X .035 thou Wall thickness from Michigan…
  • Bottom tubes and seat tube are Reynolds .7 mm butted from a couple of old days frame sets ..
  • Chain stays are Columbus Nivercrome …
  • whole bike is a tad under 12 kg

Rate This Bike:

!!!Every featured Bike Of The Day with a rating of 5 in each criteria. It’s gonna be a little harder to get a super high rating this year. 

Grump Double Barrel 29in
{{ reviewsOverall }} / 10 Users (4 rated)
Color5.49
Originality7.97
Parts7.67
Overall Style7.96
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If you would like to get your bike featured as Bike Of The Day. CLICK HERE for all the submission information

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2 Comments

  1. I’d love to see this bike put through its paces on a video. These unique designs need to be promoted to help get more inspiration and ingenuity into the big bike BMX community, which is really the future of BMX, in my opinion.

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