April 19, 2026
Introducing Sig.Rando, the grumpy original chromoly touring bike that's been the companion of our staff member, Ikeda, who's owned over 40 bikes. We'll be covering its custom configuration, cargo capacity, and comfort during Audax rides, brought to you by Grumpy, a bicycle select shop in Hiroshima.
January 24, 2026
Hello, this is Ikeda from grumpy.
We've just received a new frameset, the "Ritchey Montebello," a long-distance long-ride model.
This model is an e...
Posted in
montebello ,
ritchey ,
エンデュランスロード ,
オールロードバイク ,
クロモリ ,
クロモリフレーム ,
クロモリロード ,
クロモリロードバイク ,
グラベルロードバイク ,
ブルベ ,
ロードバイク
January 20, 2026
Hello, this is Ikeda from grumpy.
We have a new arrival: the 2026 KONA UNIT X complete bike, an all-around MTB perfect for daily use, trail riding,...
January 13, 2026
Hello, this is Ikeda from grumpy.
Ritchey is an American brand with over half a century of history.
They are a manufacturer with character and phil...
September 19, 2025
We've started carrying Crust Bikes, an American bike brand that has garnered support from adventure riders worldwide. They arrived at Grumpy today....
Posted in
crust ,
キャンプツーリング ,
クロモリ ,
クロモリフレーム ,
グラベル ,
グラベルツーリング ,
グラベルバイク ,
グラベルロード ,
グラベルロードバイク ,
ツーリング ,
ツーリングバイク
June 3, 2025
Otso Cycles' popular Warakin S (Warakin Steel) frames from Minnesota, USA, are now in stock in all colors and sizes.
The Warakin S is a versatile a...
Posted in
otso ,
クロモリ ,
クロモリフレーム ,
クロモリロード ,
グラベル ,
グラベルツーリング ,
グラベルバイク ,
グラベルロード ,
グラベルロードバイク ,
フレーム ,
フレームセット
May 18, 2025
Grumpy is now stocking Chromag, an MTB brand from Canada!
Chromag is a brand that captivates fans with its high-quality parts and unique designs, c...
January 5, 2025
Hello, this is Ikeda from grumpy.
The KONA SUTRA LTD is a gravel adventure bike that can be ridden almost anywhere.
Among the many gravel bikes, it...
May 19, 2024
The Unauthorized 33rpm, designed and engineered in Japan to suit Japanese trail conditions and climate.
The final shipment of the current lot of 3...
Posted in
29er ,
29インチ ,
MTB ,
MTB / マウンテンバイク ,
unauthorized / アンオーソライズド ,
クロモリ ,
クロモリフレーム ,
ダウンヒル ,
トレイル ,
トレイルライド ,
ハードテイル ,
マウンテンバイク
January 19, 2024
We have two special edition Sig.Rando bikes available.
Compared to the standard complete bike, this model features some different parts and is off...
December 8, 2023
The KONA UNIT X is a very popular rigid chromoly MTB.
We receive many inquiries about it from customers every year, and it's a mountain bike that w...
November 27, 2023
Pre-orders are now open for KONA's 2024 models.
KONA offers many recommended models for 2024, including the highly popular gravel road model ROVE a...
Use left/right arrows to navigate the slideshow or swipe left/right if using a mobile device
![The Most Beautiful Bicycle Is the One You Ride — My Partner, Sig.Rando [Staff Bike Feature #02]](//ride.grumpy.jp/cdn/shop/articles/20260413-DSC_0216_455x300@2x.jpg?v=1776736727)
Introducing Sig.Rando, the grumpy original chromoly touring bike that's been the companion of our staff member, Ikeda, who's owned over 40 bikes. We'll be covering its custom configuration, cargo capacity, and comfort during Audax rides, brought to you by Grumpy, a bicycle select shop in Hiroshima.
Hello, this is Ikeda from grumpy. We've just received a new frameset, the "Ritchey Montebello," a long-distance long-ride model. This model is an e...![[KONA UNIT X] The 2026 model has just arrived.](//ride.grumpy.jp/cdn/shop/articles/DSC_0027-1_3bb1c1c7-7bbc-4e6d-bb0c-bde20c58899d_455x300@2x.jpg?v=1768877689)
Hello, this is Ikeda from grumpy. We have a new arrival: the 2026 KONA UNIT X complete bike, an all-around MTB perfect for daily use, trail riding,...![[Custom Build Introduction] RITCHEY ROAD LOGIC DISC](//ride.grumpy.jp/cdn/shop/articles/IMG_6865_455x300@2x.jpg?v=1768298860)
Hello, this is Ikeda from grumpy. Ritchey is an American brand with over half a century of history. They are a manufacturer with character and phil...
We've started carrying Crust Bikes, an American bike brand that has garnered support from adventure riders worldwide. They arrived at Grumpy today....
Otso Cycles' popular Warakin S (Warakin Steel) frames from Minnesota, USA, are now in stock in all colors and sizes. The Warakin S is a versatile a...
Grumpy is now stocking Chromag, an MTB brand from Canada! Chromag is a brand that captivates fans with its high-quality parts and unique designs, c...
Hello, this is Ikeda from grumpy. The KONA SUTRA LTD is a gravel adventure bike that can be ridden almost anywhere. Among the many gravel bikes, it...
The Unauthorized 33rpm, designed and engineered in Japan to suit Japanese trail conditions and climate. The final shipment of the current lot of 3...
We have two special edition Sig.Rando bikes available. Compared to the standard complete bike, this model features some different parts and is off...
The KONA UNIT X is a very popular rigid chromoly MTB. We receive many inquiries about it from customers every year, and it's a mountain bike that w...
Pre-orders are now open for KONA's 2024 models. KONA offers many recommended models for 2024, including the highly popular gravel road model ROVE a...
![The Most Beautiful Bicycle Is the One You Ride — My Partner, Sig.Rando [Staff Bike Feature #02]](http://ride.grumpy.jp/cdn/shop/articles/20260413-DSC_0216_455x300@2x.jpg?v=1776736727)
![[KONA UNIT X] The 2026 model has just arrived.](http://ride.grumpy.jp/cdn/shop/articles/DSC_0027-1_3bb1c1c7-7bbc-4e6d-bb0c-bde20c58899d_455x300@2x.jpg?v=1768877689)
![[Custom Build Introduction] RITCHEY ROAD LOGIC DISC](http://ride.grumpy.jp/cdn/shop/articles/IMG_6865_455x300@2x.jpg?v=1768298860)
