Blog
-
If You Haven't Done It, Try It | How I Started Downhill on a Hardtail — Unauthorized 33rpm 6th [Staff Bike Feature #03]
![]()
![If You Haven't Done It, Try It | How I Started Downhill on a Hardtail — Unauthorized 33rpm 6th [Staff Bike Feature #03]](//ride.grumpy.jp/cdn/shop/articles/DSC_0366_67e05328-5e4f-413f-b1ca-3af1fef51558_455x300@2x.jpg?v=1779510347)
Downhill Was Fun When I Didn't Push It This is the third installment of our staff bike feature.Today, we introduce Nishigami's Un Authorized 33rpm... -
400km Long Ride on an MTB | Why the ORBEA OIZ is So Fast [Staff Bike Feature #01]
![]()
![400km Long Ride on an MTB | Why the ORBEA OIZ is So Fast [Staff Bike Feature #01]](//ride.grumpy.jp/cdn/shop/articles/20260405-DSC_0195_c2dc986c-99f3-401d-875a-68e2fa0a71f7_455x300@2x.jpg?v=1776736270)
The ORBEA OIZ M10 was introduced with the theme of "long ride x mountains." After completing a 400km long ride, it achieved a cruising speed of 30km/h, which is unbelievable for an MTB. Grumpy staff honestly review the capabilities of this versatile MTB, which comes standard with OQUO carbon wheels, the new SHIMANO XT, and FOX FACTORY suspension.
-
MTB and drop bars combined! The KONA LBF demo bike is ready for test rides.
![]()
KONA's long-awaited new bike, the "LBF," has arrived! We also have a test ride bike available. KONA LBF Complete Bike Price: 444,400 yen Here's a ... -
[KONA UNIT X] The 2026 model has just arrived.
![]()
![[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,... -
KYB to release MTB suspension! Pre-orders now open
![]()
KYB's MTB suspension has been attracting attention for the past year, with prototypes gradually being spotted, and then displayed and available fo... -
Now's the time to buy your Orbea e-MTB or XC bike! December-only campaign information
![]()
If you're considering an e-MTB or a full-suspension XC bike, this is for you! This is a limited-time campaign for Orbea's WILD e-MTB or OIZ full-s... -
Are radial tires really that good? I rode downhill with the Schwalbe ALBERT.
![]()
To sum it up, it was incredibly good. Honestly, at first, I thought, "How much difference can a radial structure really make?"But after actually in... -
Transition I customized the new Sentinel.
![]()
Things I Want to Try While My Body Can Still Move Around the age of 40, a slightly melancholic thought began to vaguely cross my mind: "How much l... -
If you want to fully enjoy your gravel or mountain bike, you have to go off-road! I had a blast on the cross-country course at Senishi Youth Travel Village!
![]()
The other day, I went with my cycling friends to run the cross-country MTB course at "Seranishi Youth Travel Village." The location is here: This... -
"Huh? Was TRP always this good?" - The Latest in Brake Technology
![]()
What comes to mind when you hear "TRP"? Do you imagine something like "a somewhat minor manufacturer?" or "cheap brakes that come with complete bik... -
We're excited to announce that we're now carrying Chromag from Canada!
![]()
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... -
I'm reviving the Surly Karate Monkey that was gathering dust at home!
![]()
Hello, this is Ikeda. Mountain biking is so much fun! Ever since I saw young people with sparkling eyes riding bikes, I've completely fallen for it...
![If You Haven't Done It, Try It | How I Started Downhill on a Hardtail — Unauthorized 33rpm 6th [Staff Bike Feature #03]](http://ride.grumpy.jp/cdn/shop/articles/DSC_0366_67e05328-5e4f-413f-b1ca-3af1fef51558_455x300@2x.jpg?v=1779510347)
![400km Long Ride on an MTB | Why the ORBEA OIZ is So Fast [Staff Bike Feature #01]](http://ride.grumpy.jp/cdn/shop/articles/20260405-DSC_0195_c2dc986c-99f3-401d-875a-68e2fa0a71f7_455x300@2x.jpg?v=1776736270)
![[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)
- Page 1 of 4
- Next page