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What I learned from my first run in a long time.
Hello, this is Ikeda.
During the Obon holiday, I went for a run for the first time in a while.
I ...
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Customizing the drivetrain of a Surly Bridgeclub to "make it run better."
Recently, our staff member Takenoshita went for a ride along the riverbed on his Surly Bridgeclub...
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MTB Summer Sale 2023 announcement. Until August 13th.
Here's a great offer for those considering buying a mountain bike.
👉 MTB Summer Sale 2023 👈
Y...
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Introducing a custom build of the Surly Bridge Club, which is also great for casual exercise.
A customer ordered a Surly Bridge Club for "casual exercise" around their home. With an MTB-based...
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An introduction to Santa Cruz demo bikes and a discussion on how to choose a mountain bike
Santa Cruz demo bikes have arrived!
I'd like to introduce what kind of bikes these demo bikes are...
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Hardtail mountain bike optimized for Japan. UnAuthorized "NEW" 33rpm
Around 20 years ago, we wanted to simply pursue the joy of mountain biking with a hardtail.
UnAut...
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[Free Paint] Now's your chance to get a Surly Karate Monkey!
One of Grumpy's most popular MTBs, the Surly Karate Monkey, is back in stock in Japan! We current...
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Updated 3/28: Mountain bikes and fat bikes you can buy now at Grumpy
Here are the mountain bikes currently in stock at Grumpy, and mountain bikes with known arrival...
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Update 3/20: Bikes available for immediate purchase and stock status
【Updates】
・Brompton C line Explore Mid w/Rack Matte Black has arrived.
・Brompton C line Explore ...
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If it's your first MTB, the Surly Karate Monkey is highly recommended.
For those of you who are thinking, "Okay! I want to start mountain biking!" the first thing you s...
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A kit that can convert any bike to a single speed. This is about converting a geared hub to a single speed.
There are two key points when building a single-speed bike.
These are the frame standard and the...
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Surly Ice Cream Truck with powder-coated frame and rims
The Surly Ice Cream Truck is a fat bike with some of the widest tires around.
It's safe to say it...
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![[Free Paint] Now's your chance to get a Surly Karate Monkey!](//www.grumpy.jp/cdn/shop/articles/3EF00B9B-0733-4EA3-80B8-5F35A1E083F3_345x345@2x.jpg?v=1686547059)
![[Free Paint] Now's your chance to get a Surly Karate Monkey!](http://www.grumpy.jp/cdn/shop/articles/3EF00B9B-0733-4EA3-80B8-5F35A1E083F3_345x345@2x.jpg?v=1686547059)
