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Description
e bike fatbike fully KeystoneIntroducing the all new Keystone Electric Fat Tire Bike. Since 2013, Borealis has specialized in lightweight, high end fat bikes. The Keystone is our first ever Class I electric bike. The frame geometry is optimized for riding just about anything with clearance for up to 5 wide tires. Paired with the most technically advanced components in the industry, the Keystone sets the standard for premium quality Electric fat bikes. HIGHLIGHTS Color: Gunmetal
Introducing the all-new Keystone Electric Fat Tire Bike. Since 2013, Borealis has specialized in lightweight, high end fat bikes. The Keystone is our first ever Class I electric bike. The frame geometry is optimized for riding just about anything with clearance for up to 5” wide tires. Paired with the most technically advanced components in the industry, the Keystone sets the standard for premium quality Electric fat bikes.
HIGHLIGHTS
- Color: Gunmetal Grey with Cobalt Blue Graphics
- Weight: 56 lbs. as shown.
- Standard features include Shimano EP8 Drive Unit, Shimano 630Wh Battery, SRAM G2 RS brakes, Mastodon Pro EXT 120mm suspension fork, carbon handlebars, dropper seat post, durable Sun Ringle Mulefüt rims and your choice of tires.
- Frame geometry provides responsive handling, offering maximum control for varying conditions in snow or sand.
- Tire clearance up to 26x5” and 27.5x4.5”.
- Lightweight, 6000 series aluminum frame comes with internally routed cables, 1-2 bottle cage mounts and lizard skin protection.
- Keystone Frames are backed by our LIMITED LIFETIME WARRANTY.
ASSEMBLY
Some assembly required upon receipt. Your bike will be completely assembled and tuned by Borealis, then partially disassembled for shipment. The remaining assembly will require installation of the rear derailleur, chain, fork, seat post, wheels, and handlebars. A kit will be included with your order that has all the necessary tools assemble your bike, including a multi-tool, torque wrench, and shock pump. If you are not familiar with this level of assembly, we recommend having your local bike shop complete the assembly.
Stay tuned for our step-by-step assembly video.
WHEELS AND TIRES
- All bikes come standard with tubes.
- If you order rim tape with your Mulefut rims, we will tape the rims and install the tires with tubes.
- Tubes must be removed and tubeless valves installed for tubeless set up. We recommended to have this completed by a professional bicycle mechanic.
SIZE CHART
BUILD SPECS
| Frame | Borealis Keystone Aluminum 15", 17", 19", 21" |
| Drive Unit | Shimano DU-EP800 |
| Battery | Shimano BT-E8036 (630Wh) |
| Display | Shimano SC-EM800 |
| Assist Switch | Shimano SW-EM800L |
| Speed Sensor | Shimano EWSS300L540A |
| Fork | Manitou Mastodon PRO EXT 120mm, 51mm offset |
| Headset | FSA w/ Star Nut |
| Stem | Borealis 50mm |
| Handlebar | Borealis Carbon |
| Grips | Ergon GP1 |
| Saddle | WTB Volt Medium Steel |
| Seat Collar | Borealis Bolt-On |
| Seatpost | KS Lev Integra 125mm (SM, MD) / 150mm (LG, XL) |
| Brakes | SRAM G2 RS |
| Rotors | SRAM HS2 200mm front / 180mm rear |
| Shifter | SRAM AXS Pod Contoller Right Bridge w/ MMX Clamp for GX Eagle Transmission |
| Derailleur | SRAM GX Eagle Transmission Derailleur |
| Cassette | SRAM GX Eagle Transmission Cassette 10-52T |
| Chain | SRAM GX Eagle Transmission Flattop Chain |
| Crank Arms | Samox 170mm |
| Chainring Mount | Samox 104 BCD for 75mm chainline |
| Chainring | SRAM Eagle Transmission E-Bike MTB Chainring 104 BCD 36T Steel |
| Rims | Your choice of SunRingle Mulefüt SL - 26x80, 27.5x80, or 27.5x65 |
| Spokes | Straight Gauge 2.0 Black |
| Hubs | Borealis Gen 4 15x150 / 12x197 |
| Tires | Your choice. All tire options are listed online. |
| Included | Shimano ECE80042 Battery Charger, AXS Power Pack, Kickstand, UDH Hanger, Key for battery release, Borealis Rear Thru Axle, Remote Battery Charging Adapter |
| Weight | Size Medium w/ Mulefut 27.5x80 & Terrene Yippee Ki Yay 4.3" Tires: 56 lbs. |
FRAME SPECS
| Wheel / Tire Size | 26 x 3.8–5.0" on up to a 100mm rim / 27.5 x 2.8-4.5 on up to a 82mm rim / 29 x 2.25–3.0 |
| Susp Fork Travel | 120mm |
| Fork Offset | 51mm |
| Headset-Upper | IS41 |
| Headset-Lower | IS52 |
| Seatpost | ø31.6mm |
| Seat Collar | ø34.9mm |
| Dropper Compatible | Internal - 125mm for SM & MD / 150mm for LG & XL |
| Front Derailleur Type | Not Compatible |
| Bottom Bracket | Shimano EP8 |
| Crankset (Max Ring) | Chainline 75mm / 1x (38t) |
| Rear Brake (Rotor) | 74mm post (160–180mm) |
| Rear Spacing | 197 x 12mm thru-axle |
| Rear Axle | ø12 x 222L, TP= 1.0, TL = 16 |
| Derailleur Hanger | SRAM UDH |
| Bottle Mount | Small & Medium: 1 (downtube) / Large & XL: 2 (downtube & seatube) |
| Rear Rack Reccomendation | Old Man Mountain Divide Fat |
| Rear Rack Mounts, Upper | Yes |
| Axle to Crown | 531mm |
| Steerer Tube Size | 28.6mm |
| Steerer Style | Tapered |
| Crown Seat Diameter | 40mm |
GEOMETRY CHART
| Small 15" | Medium 17" | Large 19" | X-Large 21" | |
| Effective Top Tube | 630 | 645 | 660 | 665 |
| Seat Tube Center to Top | 381 | 432 | 482 | 533 |
| Head Tube Length | 160 | 160 | 175 | 190 |
| Head Tube Angle | 69° | 69° | 69° | 69° |
| Seat Tube Angle | 73° | 73° | 73° | 73° |
| Chainstay Length | 480 | 480 | 480 | 480 |
| BB Drop | 60 | 60 | 60 | 60 |
| Reach | 420 | 435 | 445 | 446 |
| Stack | 688 | 688 | 702 | 716 |
| Standover Height | varies based on wheel and tire size | |||
| Wheelbase | 1187 | 1207 | 1223 | 1229 |
| Fork Offset | 51 | 51 | 51 | 51 |
FAQ:
| Can I use the Keystone in cold temperatures? | It is okay to use your Keystone in the operating temperature range, suggest by Shimano: -10 - 50°C |
| How do I remove the battery? | Each Keystone will come with a set of keys. Make sure to save your spare key and safe location. Insert the key fully into the lock cylinder on the non drive side of the downtube until it stops. Rotate the key clockwise until the battery drops from the downtube providing access to the latch release mechanism. Use your index finger to gently depress the spring which will fully release the battery. Use caution to support the battery when removing it so it does not fall to the ground. |
| How can I file a warranty claim for the drive unit and other electronic components? | Contact an authorized Shimano STEPS dealer. |
| Can I change my motor/power settings? | Yes, you can customize your motor settings via the app as well as update the firmware. You'll need to download the Shimano E-tube mobile app. |
| Can I change the max speed? | No. Depending on where you've purchased your Keystone it will either have a max assist speed of 20mph or 25km/h. This setting cannot be modified by the user or a dealer. |
| Can I purchase an extra battery? | Yes, you can purchase a spare battery kit with a spare downtube cover directly from Borealis. Spare battery kits may not be available in all markets. You can also purchase a spare battery from Shimano, but it will not include a battery cover. |
| Can I ride the Keystone without the battery? | No. This will void your warranty with Shimano and cause damage to the motor system. |
| Do I need to update the firmware / software? | Firmware can be updated via the Shimano E-tube mobile app. |
| How do I use walk mode? | Hold the upper button (down assistance level) for 1 second until the display turns blue and displays WALK mode. Press and hold the same button to power the rear wheel. |
| How long does it take to charge the Shimano 630Wh Battery? | With the included EC-E8004 charger, the battery can fully charge in 6 hours. |
| How long will my battery last? | The remaining battery capacity is affected by temperature and cycle count. Generally, it decreases approximately 5% a year. This means roughly 95% capacity remains after 1 year, and 90% after 2 years. |
| How should I store my bike and or battery? | Charge your battery to approximately 70% before storing for long periods of time. Store in a cool, indoor location with a stable temperature between approximately 10 - 20 C / 50 - 70 F. No direct exposure to sunlight or rain. |
| Are the electronic components waterproof? | Yes, the STEPS system is waterproof as long as all components of the system, including the battery and battery cover, are installed correctly. We recommend not using a high-pressure washer to clean your Repeater, but riding in the rain and regular cleaning are okay. |
| My bike won't turn on, what do I do? | First, make sure all cables are plugged in, if they are then try removing and reinstalling the battery. If it still won't turn on try charging your bike for a few hours. If your bike is too hot or too cold, it might not turn on. If your bike still does not turn on, contact a Transition or Shimano dealer for support. |
| Should I only charge my battery when it's completely drained? | No, simply charge the battery any time you need it, frequent charges actually help battery longevity. Avoid letting the battery discharge completely. Charge to 70% before storing for long periods. |
| What are the different error codes and what do they mean? | Whenever you encounter an error code, first cycle the power off and then back on. If the code persists, remove the battery and then reinstall, which will hard reset the system. If neither of these steps resolves the issue, please reference the Shimano error code list. If you cannot resolve your error code via your Etube mobile app please visit your nearest Shimano STEPS dealer or contact Shimano STEPS customer support. |
| What is the range and how can I maximize it? | There are many factors that affect battery range, such as, how much effort the rider is providing, the gradient of terrain, ambient temperature, and rider weight. The best way to maximize your range it to spend more time in Eco and Trail modes, and minimize the amount of time spent in Boost mode. |
| What is the widest tire the Keystone can fit? | 26x5.0" or 27.5x4.5" |
| What kind of maintenance is needed on the drive unit and how often? | The drive unit is sealed and cannot be serviced. If there are any issues with the drive unit, it will need to be removed and sent back to Shimano for service or replacement. The drive unit along with the battery is designed to last over 1000 charge cycles. Assuming you're getting 30 miles (48Km) per charge, the drive unit should last 30,000 miles, or much longer than pretty much any other part on your bike. |
| Why does my bike stop giving assistance over a certain speed? | Depending on where you've purchased your Keystone it will either have a max assist speed of 20mph or 25km/h. This setting cannot be modified by the user or a dealer. |
| Will environmental temperature affect battery life? | The battery life will be shorter during cold temperatures, this is not a sign of a problem. |
| Will my bike be delivered with a charged battery? | Your Keystone was shipped in a "sleep" mode with the battery at approximately 30% charge. It is recommended to fully charge your battery before the first ride. |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 6 reviews
Sort
Product Reviews
★★★★★ 4
Nice Soap - Not as Gritty or Intense as I was Hoping
This has been a good, but not great soap. I'm happy with it, but will detail some pros and cons for those considering ordering:
Pros:
- Good size and long lasting (one bar for a month or so).
- Good soap texture. This lathers up well, rinses off easily, and leaves your skin feeling moisturized.
- Good scent.
- Good texture.
Cons:
- Scent is not as strong as I'd like. Not a big issue, but my personal preference would be to have the scent be a bit stronger and linger after use.
- Texture is okay. You can feel the leaves in the soap, but it's in now way exfoliating.
I hope this review is helpful!
Rating System:
5 Star: Meets or exceeds all expectations; glad to have ordered!
****4 Star: Meets expectations with only a minor issue****
3 Star: Below expectations with significant issue(s) or poor item description
2 Star: Significant quality issues - very disappointed with order
1 Star: Cannot recommend purchasing under any condition
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Reviewed in the United States on October 12, 2023
★★★★★ 5
NATURAL AMERICAN Men's Bar Soap: A Masculine Symphony of Freshness and Quality
Scent: SOLDIER COLLECTION, Size: 5 Ounce (Pack of 6)
The NATURAL AMERICAN Men's Bar Soap has redefined my husband daily grooming routine with its exceptional blend of masculine scents, all-natural ingredients, and uncompromising quality. This 6-pack of 5 oz bars, aptly named "SOLDIER Body Soap," embodies a refreshing and invigorating experience that resonates with the essence of true manhood.
Masculine Scents:
The symphony of scents in these soap bars strikes the perfect balance between bold masculinity and fresh vigor. The aromatic blend is not overpowering but leaves a subtle and appealing fragrance that lingers throughout the day. It's a subtle yet impactful way to start each morning.
All-Natural Ingredients:
One of the standout features of NATURAL AMERICAN Men's Bar Soap is its commitment to all-natural ingredients. The soap is crafted with essential oils and organic shea butter, ensuring a gentle yet effective cleansing experience. The absence of harsh chemicals and additives aligns perfectly with my preference for clean and natural grooming products.
Premium Quality:
The quality of this soap is evident from the first use. The bar lathers up richly, providing a luxurious and pampering sensation on the skin. The smooth and creamy texture ensures a comfortable application, leaving the skin feeling refreshed, moisturized, and free from dryness or irritation.
6-Pack Convenience:
The 6-pack packaging is not only convenient but also offers great value. With each bar weighing 5 oz, this set provides a generous supply of high-quality soap that lasts for an extended period. The convenience of having multiple bars ensures that my husband never runs out of his favorite soap.
Made in USA:
The pride of being a product made in the USA adds to the appeal of NATURAL AMERICAN Men's Bar Soap. Supporting local craftsmanship and ensuring product quality are paramount, and this soap delivers on both fronts. It's a soap that reflects the excellence of American-made grooming products.
Moisturizing with Organic Shea Butter:
The inclusion of organic shea butter adds a layer of moisturizing goodness to the soap. Even after cleansing, my skin feels nourished and hydrated, eliminating the need for additional moisturizers. It's a thoughtful addition that enhances the overall grooming experience.
SOLDIER Body Soap Theme:
The naming of the soap as "SOLDIER Body Soap" adds a rugged and empowering touch to the product. The theme resonates with strength, confidence, and a connection to the essence of true manhood. It's a unique and appealing aspect that sets this soap apart.
Conclusion:
Its masculine scents, commitment to all-natural ingredients, premium quality, and the convenient 6-pack packaging make it a standout choice for men seeking a superior soap experience. From the refreshing lather to the lingering fragrance, this soap embodies the essence of cleanliness and masculinity. Highly recommended!
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Reviewed in the United States on January 9, 2024
★★★★★ 5
Amazing Bar Soap!
Scent: SOLDIER COLLECTION, Size: 5 Ounce (Pack of 6)
I am so pleased with my purchase of this soap! Not only does it have natural ingredients that are good for the skin, but it works better than most real soaps I’ve ever tried! It is very moisturizing, yet doesn’t leave a film behind and rinses off quickly and cleanly. It has really calmed down my extremely sensitive skin even more so than dermatologist recommended body washes and soap. It seems like a lot of dermatologists recommend non-soap products as being more comforting to sensitive skin. However,, I have found that old-fashioned soap that undergoes saponification tend to be gentler to my skin and less prone to causing dry skin and a compromised skin barrier. Amongst the real soaps there is of course variation in performance depending on the types of oils and additives they use. This soap has the perfect blend of oils and additives that create a super sudsy and moisturizing bar of soap. The scent is very light, but it has the perfect amount where you can smell the soap ingredients a bit mixed with the perfect amount of scent. The scents are very addicting and I randomly enjoy just smelling the bar because they smell that good. If you’re on the fence about this soap, just give it a try. I have been very pleased with it and will definitely purchase it again. A very fair price for the quality you’re getting.
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Reviewed in the United States on October 13, 2022
★★★★★ 4
Decent & Natural
Scent: SOLDIER COLLECTION, Size: 5 Ounce (Pack of 6)
The soaps all smell good and unique, however the scents aren’t very potent, and some seem to vary more than others in the olfactory department. I started with the army soap, but I’m not sure whether they use natural coloring or not, but it apparently sheds some green in the shower. Overall, I’d say they are high quality and natural, but they’re a bit steep in price. I would recommend them if you can get them on sale at some point.
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Reviewed in the United States on December 31, 2025
★★★★★ 5
Scents are all awesome and they ARE PLENTY strong!
Scent: SOLDIER COLLECTION, Size: 5 Ounce (Pack of 6), Scent: SOLDIER COLLECTION, Size: 5 Ounce (Pack of 6)
First thing I want to say is i do not ever leave a false review to save a few bucks or get something free.
Secondly that I have zero clue what some of these people are expecting when they say the scents are not very strong, they absolutely 100% for sure are plenty strong. I was expecting a very faint smelling bar after reading the reviews and when the box showed up (next day delivery) I did not even have to tear open the what seemed to be air tight plastic wrap off the box to smell the soaps. After removing the plastic wrap I immediately thought what in the ever loving hockey sticks are these people talking about! It smelled excellent and PLENTY strong. Then I was even more shocked to open the box and see every bar is individually sealed in plastic wrap! Like I honestly dont know how you would even want your soap smelling any stronger than that. It is just as strong as the O. Spice swagger body wash which I used for many years and am just making the switch to a healthier option for my body. So with that out of the way.
This soap is awesome. I really like every scent a lot and if it weren't for the coast guard scent I wouldnt be able to pick a favorite, however that coast guard scent is flawless in my opinion. I would absolutely buy a cologne that smelled like that. They all definitely do smell like mens colognes and somehow they nailed each one smelling good when 95% of actual mens colognes smell like crap haha.
I have only actually used the coast guard bar as I just got these today and soon as I smelled that one I knew it was going first. But with my one use I will say I am really happy and already have two more boxes in my cart. Smell gets stronger in the warm water but loses potency if that makes sense? Like it gets stronger but doesnt become overbearing to cause a headache or something, smells fantastic. Lathers up real nice when using my scrubber, feels great on the skin and probably what I love the most is that it rinses completely off like 10,000 times quicker than body washes. I hate that about body washes I always have to rinse off then spend like 10 minutes scrubbing my skin to get the film off of me, with this I just rinsed off for about 2 minutes and completely off, no scrubbing my skin after and no film just clean skin. I did also notice my skin felt a hair more hydrated, but that could also be because I am so used to body washes leaving it feeling dry.
Another thing I really like is how they list all Ingredients of each individual soap very clearly on the back of the box that is a nice touch I thought.
I went with this brand to try because reviews all seemed good and price point was actually reasonable unlike them other guys which I would never pay that price for soap, and I'm really happy i did, it's better than I expected and I honestly can not think of anything I dont like about it.
The one con I can think of is I immediately jumped on here to see about getting multiples of just the coast guard bars and it seems you can only buy this mixed box. Which is not a problem I like them all plenty well, just really really like the coast guard scent.
Please SOLDIER dont jack your prices up once you get bigger as I'm sure you will get bigger with this good a product. But that's what I feel really separates you is that you are selling them at a reasonable price and not gouging people.
Buy this!
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Reviewed in the United States on April 1, 2021
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