The KONA KAHUNA is a versatile 29er hardtail MTB that can handle everything from city rides to trails and touring. Featuring a Shimano DEORE 1x12 speed drivetrain and 29x2.35 tires, it's a highly adaptable bike that's easy for beginners to handle.
KONA KAHUNA | A versatile hardtail MTB for city riding and touring
Rear rack and fender compatible. A versatile 29er hardtail that lets you ride freely in the city or on forest trails.
The KONA KAHUNA is a versatile hardtail MTB that can handle everything from trail riding to touring and city commuting.
Unlike recent "downhill-focused" MTBs, it adopts a neutral geometry that allows for comfortable climbing, riding, and long distances. Coupled with the high stability and cruising performance of 29x2.35-inch tires, it's an easy-to-handle bike for first-time MTB riders.
In addition, it comes standard with mounts for a rear rack, fenders, and a kickstand. This high practicality, which goes beyond just trails to include commuting, adventure touring, and daily use, is another appealing feature of the KAHUNA.
The main groupset is Shimano DEORE 1x12 speed. The wide range of 10-51T allows you to tackle steep climbs and loaded tours with ease.
This 29er hardtail is highly recommended for anyone from those "who want to start MTB" to those "who want to enjoy various activities with one bike."
Features
Versatile 29er hardtail for city riding, trails, and touring
Easy-to-handle and comfortable ride performance thanks to neutral geometry
Shimano DEORE 1x12 speed drivetrain
High climbing performance with 10-51T wide sprocket
Equipped with MAXXIS FOREKASTER 29x2.35 tires
Rear rack, fender, and kickstand mounts included
110x15mm Boost front axle
Lockout-compatible suspension fork
High practicality for touring and bikepacking
Balanced design, easy to handle for MTB beginners
SPEC
Model: KONA KAHUNA
Model Year: 2026
Frame: KONA Aluminum
Drivetrain: Shimano DEORE 1x12 speed
Sprocket: 10-51T
Tires: MAXXIS FOREKASTER 29x2.35
Front Axle: 110x15mm Boost
Rear Axle: 135x10mm Quick Release
Wheel Size: 29 inch
Color: Gloss Kiwi
Sizes: S (160-173cm), M (168-180cm), L (173-185cm)
The KAHUNA is an exquisite model that, while possessing the excellent off-road capability of an MTB, is also considerably easy to use for daily activities.
It's not as idiosyncratic as recent hardcore MTBs, and it handles climbs and city riding comfortably, allowing for various uses without being restricted to "trail-specific." The cruising performance of the 29er tires is also high, giving the impression that it's less tiring on long rides.
Another significant appeal is the natural integration of racks and fenders, making it a perfect match for "MTB adventure touring" styles often seen abroad. Of course, it's also recommended for urban riders looking for a rugged commuter bike.
I believe this is the perfect bike for those "who want to start MTB but haven't decided on their specific use."
RockShox Recon Silver RL Solo Air 100mm Tapered 110mm Spacing
Crankset
Prowheel 12spd 32T
BB
Shimano 73mm
F Derailleur
n/a
R Derailleur
Shimano Deore 12 spd
Shifters
Shimano Deore 12 spd
Cassette
Shimano Deore 10-51t 12spd
Brake Levers
Shimano MT401 Hydraulic
Brakes
Shimano MT401 Hydraulic
Tires
Maxxis Forekaster 29x2.35"
Wheels
Rims: WTB ST i27 TCS 2.0 Front Hub: Formula 110x15mm Rear Hub: Shimano 135x10mm
Handlebar
Kona XC/BC Riser
Stem
Kona XC
Headset
FSA No.57B
Saddle
WTB Volt
Seatpost
Kona Thumb w/Offset 31.6mm
フレームジオメトリー
フレームサイズ
370
420
470
HA
68
68
68
SA
75
75
75
TT
576
604
631
HT
95
105
115
FC
-
-
-
RC
450
450
450
BB
60
60
60
FO
51
51
51
WB
1135
1164
1192
SH
727
733
738
SK
602
611
620
RH
415
440
465
適応身長
160~173cm
168~180cm
173~185cm
◆Returns and Exchanges
Please inspect your order as soon as possible after it arrives.
Parts, apparel, accessories, and other cycling goods may be returned or exchanged. Return and reshipping costs are covered either by the customer or by our store, depending on the circumstances.
Complete bicycles cannot be returned or exchanged for reasons of customer preference. We will only accept returns in the event of a product defect or damage during delivery.
“In-store Stock” items are currently available at an Eirin store or in our warehouse. Each item will be inspected before being dispatched.
“Special Order” items are ordered from the manufacturer or an authorized Japanese distributor. After the item arrives, we conduct a final inspection before dispatch.
※If “In-store Stock” is unavailable, please select “Special Order.” We will contact you by email once the item has arrived from the supplier.
※If the manufacturer or distributor is also out of stock, the item cannot currently be purchased. Select the “Notify me when available” button to receive a restock notification.
◆From Order to Delivery
※① If an item is out of stock, we will contact you by email and ask whether you would like to change or cancel the item.
※② Items cannot be added, changed, or cancelled after the order has been confirmed.
※③ Once your order has been dispatched, we will email you with the shipping confirmation and tracking number.
◆Shipping Carrier
Orders are generally shipped by Seino Transportation.
Another shipping carrier may be used depending on the contents of your order or the delivery area.
◆Pickup at Eirin Stores in Kyoto City
Shipping is free when you collect your order from one of our street-front stores in Kyoto City.
Complete bicycles generally require approximately 1-2 weeks for assembly and inspection before pickup.
Some parts and apparel are stored in our warehouse and may require approximately 1-5 days before they are ready for pickup.
※Due to system limitations, the following payment methods are available for store pickup orders:
Shop Pay, Credit Card, Bank Transfer, and JACCS Financing
Customers wishing to use another payment method should select standard delivery instead of store pickup.
◆Pickup at a Seino Transportation Branch
※Shipping for complete bicycles is free when the bicycle is collected from an eligible Seino Transportation branch.
This service is available only for complete bicycles. Parts, cycling goods, apparel, and accessories are not eligible.
For purchases under ¥55,000 including tax and excluding payment fees, the shipping charge is reduced to half of the standard rate.
Different charges apply to Hokkaido, Okinawa, and remote islands. These charges are still lower than residential delivery rates.
💬 STAFF REVIEW
The neutral geometry and 29er tires handle long distances with ease, making for a comfortable ride.
You don't have to force out creative ways to carry your luggage, as it can be fitted with a rear rack, making large loads a breeze.
Of course, these characteristics make it recommendable not only to hardcore cyclists but also to beginners who tend to stick to city riding.
It even comes with options for a rear fender and a kickstand, making it an excellent wild commuter, too.