Overview
If the Unit were to put out a wanted ad for its ideal rider it might look something like this: Cromoly, single-speed badass ISO someone to adventure with. Some people call me rigid. I think I’m just classy. I like long rides in the sun (or mud, or snow), will carry all your stuff, will last forever, and promise to be the bike that turns heads wherever you go. I can be converted to a 12-speed if that’s your thing. Like food? I have Bento box mounts too! Let’s party!
Geometry & Ride Characteristics
The Kona Unit is designed with a geometry that prioritizes both utility and comfort for long-distance, off-road adventures. The 110mm fork spacing allows for larger tires, enhancing traction and stability when the bike is loaded with gear. The absence of rear shocks and a simplified, single-speed drivetrain not only reduce maintenance but also free up space for frame bags and other essentials. The bike’s top tube offers a comfortable reach for extended saddle time and extra room for a frame bag. Its slack head tube angle and optimized bottom bracket height contribute to stability and control, especially when navigating technical terrains with a loaded setup. The chainstays are thoughtfully designed to balance stability and manoeuvrability, making the Kona Unit a reliable choice for bikepacking.
Riding the Kona Unit offers a raw and direct experience, thanks to its rigid frame and single-speed setup. The absence of rear shocks and a simplified drivetrain means you feel closely connected to the terrain. Its hydraulic disc brakes provide reliable stopping power, while the larger tire options offer good traction and a smoother ride over rough surfaces. The bike’s geometry and components come together to offer a ride that is both challenging and rewarding, ideal for purists who seek a no-frills adventure.
- Top Tube Length: Ranging from 582mm to 675mm across sizes, the Kona Unit’s top tube is designed to offer a comfortable reach. This is crucial for long hours in the saddle, especially during bikepacking expeditions. Compared to other bikes, a longer top tube can also provide more space for a frame bag.
- Head Tube Angle: At 68.0 degrees for all sizes, the slack head tube angle contributes to the bike’s stability. This is particularly beneficial for bikepacking where control and stability are paramount, especially when navigating through technical terrains with a loaded bike.
- Seat Tube Angle: The seat tube angle is 75.0 degrees across all sizes, which is relatively steep. This helps in efficient power transfer and allows for a more aggressive riding position, differentiating it from bikes with slacker seat tube angles.
- Chainstay Length: At 430mm for all sizes, the chainstays are designed to be long enough to provide stability and weight distribution, yet short enough to maintain maneuverability. This is a balanced approach compared to bikes with either too long or too short chainstays.
- Bottom Bracket Drop and Height: With a 65mm drop and 310mm height across all sizes, the bottom bracket is optimized to offer sufficient ground clearance while maintaining a low center of gravity. This is essential for handling a bike that’s loaded with gear, setting it apart from bikes with higher or lower bottom brackets.
- Wheelbase: Ranging from 1115mm to 1211mm, the wheelbase is long enough to provide stability but not so long that it becomes cumbersome. This makes the Kona Unit well-suited for bikepacking, offering a balanced blend of comfort, stability, and utility.
- Fork Length and Offset: With a 470mm fork length and 50mm offset across all sizes, the Kona Unit offers a stable and predictable ride, especially when the bike is loaded, distinguishing it from bikes with different fork specifications.
vs. the Kona Unit X
The Kona Unit X, with its wider range of gears, is a slightly more expensive version of the Kona Unit. While both bikes share the same frame, the primary differences lie in their groupset and brakes as follows:
- Drivetrain
- Kona Unit: Features an FSA Comet Modular crankarm with a 32t chainring and a KT 18t cassette. This single-speed setup is straightforward and low-maintenance, ideal for riders who prefer a consistent cycling experience.
- Kona Unit X: Comes with a Prowheel 12-speed crankarm and a Shimano Deore rear derailleur, paired with a 10-51t 12-speed cassette. This offers a wider range of gearing options, making it versatile for tackling various terrains from steep climbs to fast descents.
- Brakes
- Kona Unit: Equipped with Alhonga HT472 Hydraulic brake calipers and rotors sized at 180mm front and 160mm rear. These provide adequate stopping power but may not offer the same level of modulation as more premium options.
- Kona Unit X: Features Shimano MT410 Hydraulic brakes with centerlock Shimano RT10 rotors sized at 180mm front and 160mm rear. These offer better stopping power and modulation, enhancing overall ride safety.
vs. the Surly Krampus Rigid
The Surly Krampus Rigid is designed for stability and comfort, ideal for long-distance bikepacking and off-road treks. Its relaxed geometry and longer wheelbase contribute to a more laid-back ride. On the other hand, the Kona Unit is built for agility and quick handling, with its steeper seat tube angle and shorter chainstays making it more responsive. While both bikes excel in durability and off-road capability, the Krampus is geared towards those who prioritize steady, comfortable rides, whereas the Kona Unit is for riders seeking more maneuverability.
- Drivetrain
- Surly Krampus Rigid: Features a Shimano Deore setup, reliable for long-distance bikepacking and well-suited for a variety of off-road conditions.
- Kona Unit: Comes with an FSA Comet Modular crankarm and a single-speed setup, simplifying gear changes and reducing maintenance, ideal for those who prefer a straightforward riding experience.
- Brakes
- Surly Krampus Rigid: Comes with mechanical disc brakes, offering consistent stopping power that is easy to maintain.
- Kona Unit: Features Alhonga HT472 Hydraulic brakes, providing more immediate and responsive braking, which is particularly useful when navigating through technical terrains.
- Ride Feel
- Surly Krampus Rigid: Offers a more relaxed and comfortable ride, ideal for long distances and heavy loads, making it a go-to for extended bikepacking trips.
- Kona Unit: Provides a more agile and responsive ride, better suited for quick maneuvering and varied terrains, offering a lively feel that some riders prefer.
- Geometry
- Surly Krampus Rigid: Designed with a longer wheelbase and relaxed angles for stability and comfort, making it a solid choice for those who prioritize a stable ride.
- Kona Unit: Features a steeper seat tube angle and shorter chainstays for quicker handling and responsiveness, appealing to those who enjoy a more active riding style.
vs. the Bombtrack Beyond+
The Bombtrack Beyond+ is designed for rugged off-road expeditions, featuring a 4130 double butted crmo frame and a comprehensive set of fender, rack, and triple cage mounts, making it highly adaptable for various bikepacking needs. In contrast, the Kona Unit focuses on simplicity and agility, featuring a Reynolds 520 Butted Cromoly frame and a single-speed setup. While the Bombtrack offers a more versatile and customizable ride suited for challenging terrains, the Kona Unit provides a straightforward, responsive experience ideal for riders who prefer less complexity. Both bikes offer different levels of specialization, catering to distinct rider preferences.
- Drivetrain
- Bombtrack Beyond+: Equipped with a SRAM SX-EAGLE 12-speed drivetrain, providing a wide range of gearing options for various terrains.
- Kona Unit: Comes with a single-speed setup, simplifying the ride and reducing the need for frequent gear changes.
- Brakes
- Bombtrack Beyond+: Uses SRAM LEVEL hydraulic disc brakes, offering reliable stopping power in various conditions.
- Kona Unit: Features Alhonga HT472 Hydraulic brake calipers, providing sufficient braking force for most terrains.
- Ride Feel
- Bombtrack Beyond+: Designed for a versatile and customizable ride, well-suited for challenging terrains and heavy loads.
- Kona Unit: Offers a straightforward, responsive experience, ideal for those who prefer a simpler setup with less maintenance.
- Geometry
- Bombtrack Beyond+: Geometry is optimized for stability and comfort during long rides, with features like stealth dropper readiness and Boost spacing.
- Kona Unit: Geometry focuses on agility and utility, with a slack head tube angle and longer top tube for a more comfortable reach, especially beneficial for bikepacking.
Features
Rigid Kona Plus Fork: The Kona Unit features a specialized Kona Plus Fork with 110mm spacing, designed to accommodate a variety of wheel and tire sizes. This fork design is a standout feature, offering both versatility and durability, which is not commonly found in bikes at this price point.
Single-Speed Setup: The Kona Unit comes with a single-speed drivetrain, which significantly simplifies the cycling experience. This setup eliminates the complexities associated with multiple gears, such as the need for frequent gear shifting and the potential for derailleur issues. It’s particularly beneficial for bikepacking adventures where you want to minimize mechanical complications. The single-speed design also allows for more straightforward maintenance, making it easier to manage on long trips.
Flat Bar with Optimized Geometry: The Kona Unit X comes with a flat bar that has been optimized for both comfort and control. The flat bar design contributes to a more upright riding position, which is ideal for long-distance bikepacking and trail riding. This ergonomic feature is a unique selling point, as many similarly priced bikes come with less comfortable handlebar setups
Bag, Rack and Fender Mounting Points
The Kona Unit is well-equipped with a variety of mounting points to cater to all your bikepacking needs:
Front and Rear Rack Mounts: The Kona Unit comes with front and rear rack mounts, offering the flexibility to carry a variety of bags, gear, or panniers. These mounts are strategically placed to distribute weight evenly, making it easier to manage the bike’s handling during long rides.
3-Pack Rack Fork Mounts: These mounts are located on the front fork and are ideal for carrying water bottles or small bags. Their placement allows for easy access while riding, making hydration and snacking more convenient.
Bottle Cage Mounts: The bike features bottle cage mounts on both the top and bottom of the down tube, and sometimes on the seat tube as well. These mounts are designed for easy reach and stability, ensuring your water bottles stay secure even on rough terrains.
Top Tube Mounts: There is a mount on the top tube specifically designed for a fuel tank bag. This is perfect for keeping essential items like snacks or a phone within easy reach, especially during longer rides where quick access is crucial.
Under Downtube Mount: The Kona Unit also features a mount under the downtube, a common place for carrying an extra water bottle or a tool keg. This mount is particularly useful for long rides where extra hydration or tool access may be needed.
Fender Mounts: These mounts are located near the tires and are designed for attaching fenders. They are particularly useful for rides in muddy or wet conditions, helping to prevent mud and water spray.
Kona Unit Featured in the Wild
Kona Unit Review by Rad Bike Adventure
Rad Bike Adventure’s review of the Kona Unit is filled with enthusiasm and detailed insights. The reviewer, who is a Kona ambassador, praises the bike for its simplicity and versatility. The bike’s single-speed setup is highlighted as a feature that harkens back to the simplicity of childhood biking experiences. “It’s just me, my legs, and the bike. There’s nothing else helping me,” the reviewer notes. They also appreciate the bike’s nimbleness on trails, its comfortable fit, and the option to easily add gears in the future. Overall, the Kona Unit is described as a fun, agile, and adaptable bike that can be outfitted for bikepacking adventures.
The 2023 Kona Unit is described as a “playful supple steel shredder” that pushes riders out of their comfort zones in a fun and exhilarating manner, according to the review by Gomez on fat-bike.com. The bike’s Honzo-inspired geometry offers rowdy handling, making it ideal for backcountry adventures. The reviewer praises the bike’s frame geometry and the Wolftooth dropper post, which together create a bike that excels in cornering and downhill rides. The bike’s single-speed setup is also noted for its simplicity, reducing the need for frequent gear changes and maintenance. “The Unit is a playful supple steel shredder that pushes me out of my comfort zone in a fun and exhilarating manner,” says Gomez.
Specs
Build Kit
The Kona Unit X is a single-speed, featuring FSA Comet Modular crankarms and a 32t chainring, which simplifies the drivetrain and reduces maintenance. For braking, it employs Alhonga HT472 Hydraulic calipers and rotors, ensuring reliable stopping power. The wheelset consists of WTB ST i30 TCS 2.0 rims and a choice between Maxxis Rekon TR 29×2.6″ or WTB Ranger TCS 29×2.6″ tires, providing excellent grip and stability.
Frameset
- Frame: Reynolds 520 Butted Cromoly
- Fork: Kona Plus Fork with 110mm spacing
Drivetrain
- Front Derailleur: N/A
- Rear Derailleur: N/A
- Cassette: KT 18t
- Crankset: FSA Comet Modular with 32t chainring
- Shifter: N/A
Brakes
- Brake Calipers: Alhonga HT472 Hydraulic
- Rotors: Front – Alhonga 180mm, Rear – Alhonga 160mm
- Brake Levers: Alhonga HT472 Hydraulic
Components
- Headset: TH ZST No.10
- Stem: Kona XC
- Handlebar: Kona XC/BC Riser
- Grips: Kona Key Grip
- Seatpost: Kona Thumb w/Offset 31.6mm
- Saddle: WTB Volt
- Seatclamp: Kona Clamp
Wheels
- Front Wheel: WTB ST i30 TCS 2.0, Formula 110x15mm
- Rear Wheel: WTB ST i30 TCS 2.0, Formula 148x12mm
- Tires: Choice between Maxxis Rekon TR 29×2.6″ or WTB Ranger TCS 29×2.6″
Frame Construction
The Kona Unit features a frame made from Reynolds 520 butted Cromoly steel, known for its strength and durability. It features a Kona Plus Fork with 110mm spacing. One of the standout features is its modular/sliding dropouts, and also allows for easy adjustment of the bike’s geometry and the option to run it as a single-speed or with a derailleur. The frame does not include a rear shock, emphasizing its rigid design. The bike features a tapered head tube design, which enhances steering strength and balance, providing riders with more control in rough terrain. It is designed to accommodate a variety of wheel and tire sizes.
Geometry
| SIZE | S | M | L | XL | |
| 1 | ST LENGTH | 370 | 420 | 470 | 530 |
| 2 | TT LENGTH | 582 | 610 | 637 | 675 |
| 3 | REACH | 425 | 450 | 475 | 510 |
| 4 | STACK | 588 | 597 | 606 | 615 |
| 5 | STANDOVER | 695 | 731 | 768 | 810 |
| 6 | HT ANGLE | 68.0 | 68.0 | 68.0 | 68.0 |
| 7 | HT LENGTH | 110 | 120 | 130 | 140 |
| 8 | ST ANGLE | 75.0 | 75.0 | 75.0 | 75.0 |
| 9 | CS LENGTH | 430 | 430 | 430 | 430 |
| 10 | BB DROP | 65 | 65 | 65 | 65 |
| 11 | BB HEIGHT | 310 | 310 | 310 | 310 |
| 12 | WHEELBASE | 1115 | 1144 | 1173 | 1211 |
| 13 | FRONT CENTER | 693 | 722 | 750 | 789 |
| 14 | FORK LENGTH | 470 | 470 | 470 | 470 |
| 15 | FORK OFFSET | 50 | 50 | 50 | 50 |
Warranty
WARRANTY REGISTRATIONS
Registration is no longer necessary for your Kona warranty to be valid.
LIMITED WARRANTY
Kona Bicycle Company ( “Kona” ) makes the following limited Warranty:
ONE YEAR LIMITED WARRANTY ON COMPLETE BICYCLE (USA, UK & CANADA)
Kona warrants to the original owner that this new Kona bicycle shall be free of defective materials and workmanship for a period of one year from the date of original purchase in the United States or Canada and operated under normal conditions and use. During this one-year period, Kona shall repair or replace, at its sole option, all parts that are found by Kona to be defective and subject to this limited warranty. The original owner shall pay all labor charges connected with the repair or replacement of all parts. On Kona electric pedal-assist bikes, the electronic system is covered by a two-year warranty, whereby accidents or consumer mistakes like shorting polarity are not covered. Warranty on the battery is for one year, at the end of that period, the battery is guaranteed to retain at least 70% of its original capacity.
TWO YEAR LIMITED WARRANTY ON COMPLETE BICYCLE (EUROPE)
Kona warrants to the original owner that this newly purchased Kona bicycle shall be free of defective materials and workmanship for the two-year period stated under EU consumer protection laws, dated from the original purchase and subject to normal conditions and use. During this two-year period, Kona shall repair or replace, at its sole option, all parts that are found by Kona to be defective and therein subject to this limited warranty.
THREE YEAR LIMITED WARRANTY ON KONA BRANDED BICYCLE FORKS.
LIFETIME LIMITED WARRANTY ON BICYCLE FRAME (USA, CANADA, UK & EUROPE ONLY)*
Kona further warrants to the original owner that the frame of this new Kona bicycle purchased from an authorized Kona dealer shall be free of defective materials or workmanship for the lifetime of the product. This is ONLY VALID ON NON-CARBON FRAMES. During this warranty period, Kona shall repair or replace, at its sole option, the bicycle frame if Kona determines the frame is defective and subject to this limited warranty. The color on the warranty frame may vary from the color of the original frame. The original owner shall pay all labor and shipping charges connected with the repair or replacement of the bicycle frame. This warranty is only valid in the UK, USA, Canada, and Europe.
*This is valid on all non-carbon Kona bicycle frames. CARBON FRAMES receive 3-year warranty.
GENERAL PROVISIONS
This limited warranty is made only to the original owner of this Kona bicycle purchased from an authorized Kona dealer, and it shall remain in force only as long as the original owner retains ownership of the Kona bicycle. This limited warranty is not transferable. In order to obtain service under this Limited Warranty, the original owner must deliver the Kona bicycle, and the bill of sale or other dated proof of purchase document identifying the Kona bicycle by frame number/serial number, to an authorized Kona dealer. This Limited Warranty does not apply to normal wear and tear, nor to defects, malfunctions or failures that result from the abuse, neglect, improper maintenance, alteration, modification, accident, or misuse (including without limitation bicycle racing, bicycle motocross, stunt bicycling, commercial use or rental use) of the Kona bicycle. Damage caused by transporting bicycle, especially across the tailgate of a pickup truck – even when a pad is used – voids warranty.
THIS LIMITED WARRANTY IS THE ONLY EXPRESS OR LIMITED WARRANTY APPLICABLE TO KONA BICYCLES. ANY IMPLIED WARRANTIES, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, SHALL BE LIMITED IN SCOPE AND DURATION IN ACCORDANCE WITH THIS LIMITED WARRANTY. KONA SHALL NOT BE RESPONSIBLE FOR ANY DIRECT, INCIDENTAL, CONSEQUENTIAL OR EXEMPLARY DAMAGES SUFFERED BY ANY PARTY. THE FOREGOING STATEMENTS OF WARRANTY ARE EXCLUSIVE AND IN LIEU OF ALL OTHER REMEDIES.
THIS LIMITED WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS; YOU MAY ALSO HAVE OTHER LEGAL RIGHTS WHICH VARY FROM STATE TO STATE OR PROVINCE TO PROVINCE. SOME STATES OR PROVINCES DO NOT ALLOW LIMITATIONS OR EXCLUSION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES; SO, THE ABOVE LIMITATIONS AND EXCLUSIONS SET FORTH IN THIS LIMITED WARRANTY MAY NOT APPLY TO YOU.
THE LIMITED WARRANTY SET FORTH HEREIN MAY NOT BE EXTENDED, ENLARGED OR OTHERWISE MODIFIED BY ANY KONA DEALER, AGENT OR EMPLOYEE, AND KONA DOES NOT ASSUME ANY LIABILITY OR MAKE ANY WARRANTY EXCEPT AS STATED IN THE LIMITED WARRANTY.
WARRANTY ONLY APPLIES IN USA, CANADA, UK AND EUROPE. PLEASE SEE YOUR DEALER OR DISTRIBUTOR FOR THE SPECIFIC WARRANTY IN YOUR COUNTRY. WARRANTY VALID ONLY IF BICYCLE IS ASSEMBLED BY AN AUTHORIZED KONA DEALER.
NOTE:
Warranty is made only to the original owner of this Kona bicycle purchased from an authorized Kona dealer, and it shall remain in force only as long as the original owner retains ownership of the Kona bicycle. This limited warranty is not transferable.