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New Year's Holiday Business Hours and Special Campaign Announcement
We will be closed during the following period. Reservations, inquiries, and online shop orders r...
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One bike to rule them all! What is the Kona Sutra LTD, a monster bike that mixes road, gravel, and MTB?
The Kona Sutra LTD: The Perfect Bike for Free Spirits Who Hate Being Tied Down.
What exactly is t...
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The savior of punctured tubeless tires. LEZYNE Tubeless Pro Plug
Converting your bicycle tires to tubeless dramatically reduces punctures.
Even if a hole opens up...
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The 2024 KONA UNIT X complete bike has just arrived.
The KONA UNIT X is a very popular rigid chromoly MTB.
We receive many inquiries about it from cus...
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We are having an outlet sale due to product turnover.
Some of the items handled by Grumpy will be sold at outlet prices.
All of them are wonderful ite...
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2024 KONA ROVE and UNIT - Now accepting reservations
Pre-orders are now open for KONA's 2024 models.
KONA offers many recommended models for 2024, inc...
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Cannondale TopStone Carbon 4 Camping Touring Edition
We've customized Cannondale's "Top Stone" for camp touring.
The Top Stone is a bike that can ri...
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Grow your chain, Macoff Chain Optimization Program has started.
This time, we'd like to introduce the Muc-Off Chain Optimization Program, which creates a perfec...
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Stock of the Sig.Rando in M size is running low.
Regarding the Grumpy original bike, the Sig.Rando, we are running low on M size frame sets.
The L...
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This full-suspension mountain bike is just right: Cannondale Habit Carbon 2.
We've just received a mountain bike that's a perfect fit for Hiroshima's MTB trails.
Cannondale ...
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Allow us to introduce a custom-built handmade full chromoly road bike, the KOGO.
The Grumpy Original Road Bike "KOGO" is handmade in Hiroshima.
It's a traditional horizontal chro...
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A test ride model of the Cannondale SuperSix EVO is now available.
We have prepared a Grumpy original test ride bike for the Cannondale SuperSix Evo, which is rumor...
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