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Ships within 48 hours · Estimated delivery Sep 15 - Sep 20
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Description
bicycle modification shop near me Crestone Custom - Carbon Fat BikeSince 2013, Borealis has specialized in lightweight carbon fiber fat bikes. COMPATIBILITY Rockshox Bluto Fork tire size limitations: 26x5 or 27. 5x4 Mastodon Pro EXT Fork tire size limitations: 26x5 or 27. 5x4. 5 Borealis Rigid Carbon Fork tire size limitations: 26x5 or 27. 5x4. 5 Dually 29x45 and 27. 5x45 Rims Max tire width: 3 All rims 65mm to 85mm wide are compatible with tire widths of 3. 8 to 5 HED Carbon 100mm Rims Max tire width of 4. 6
Since 2013, Borealis has specialized in lightweight carbon fiber fat bikes.
COMPATIBILITY
- Rockshox Bluto Fork tire size limitations: 26x5” or 27.5x4”
- Mastodon Pro EXT Fork tire size limitations: 26x5” or 27.5x4.5”
- Borealis Rigid Carbon Fork tire size limitations: 26x5” or 27.5x4.5”
- Dually 29x45 and 27.5x45 Rims – Max tire width: 3”
- All rims 65mm to 85mm wide are compatible with tire widths of 3.8” to 5”
- HED Carbon 100mm Rims – Max tire width of 4.6”
ASSEMBLY
If you choose "No Assembly" your bike will require complete assembly with an exception of the wheels.
If you choose "Assembled by Borealis", there is 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 multi-tool will be included with your order that has all tools necessary to assemble the bike, with the exception of a torque wrench. If you are not familiar with this level of assembly, we recommend having your local bike shop complete the assembly. Below is a video showing the remaining assembly once you receive the bike.
WHEELS & 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.
- HED Alloy and HED Carbon rims do not require rim tape for tubeless set up.
- 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
Based on our research, riders at the heights below will usually take the corresponding frame size. If you’re at a transitional height that spans two sizes, look at the geometry chart to get the Stack and Reach you like based on other bikes you are comfortable.
BUILD SPECS
| Frame | Flume (Aluminum) | |||
| Fork | Borealis Carbon Rigid Fork Standard Option | |||
| Bottom Bracket | SRAM DUB 100mm | |||
| Crankset | SRAM Eagle NX Alloy 175mm w/ SRAM X-SYNC 30T | SRAM Eagle GX Alloy 175mm w/ SRAM X-SYNC 30T | SRAM Eagle X0 Carbon 175mm w/ SRAM X-SYNC 30T | SRAM Eagle XX Carbon 175mm w/ SRAM X-SYNC 30T |
| Rear Derailleur | SRAM Eagle NX 12 Speed | SRAM Eagle GX 12 Speed | SRAM Eagle X0 12 Speed | SRAM Eagle XX 12 Speed |
| Chain | Eagle GX | Eagle GX | Eagle GX | Eagle XX Gold |
| Cassette | PG 1230 11-50 | XG 1275 10-52 | XG 1295 10-52 | XG 1299 10-52 |
| Shifter | SRAM Eagle NX | SRAM Eagle GX | SRAM Eagle GX | SRAM Eagle GX |
| Brakes | SRAM Level T 2-piston OR SRAM G2 RS 4-Piston Hydraulic | |||
| Rotors | SRAM Centerline 160mm | |||
| Headset | FSA | |||
| Hubs | Borealis GEN 4 Black 15x150 Front / 12x197 Rear | |||
| Rims | Sun Ringle Mulefut V2 26x80 or 27.5x65 | |||
| Spokes | Borealis Straight Gauge | |||
| Nipples | Borealis Silver Brass | |||
| Tires | Your Choice | |||
| Bar | Borealis Carbon 35x760mm | |||
| Stem | Borealis 50mm | |||
| Post | Borealis Carbon 31.6x400mm | |||
| Saddle | Borealis | |||
| Grips | Ergon GP10 | |||
| DT/CS Protector | Lizard Skins | |||
| Weight | See weight calculator for estimated weight. | |||
GEOMETRY CHART
Stack and Reach are the fundamental fit elements, they are both measured relative to the bottom bracket. When choosing the Borealis that is right for you, it’s important to find a balance in these measurements to ensure the best performance.
| S | M | L | XL | |
| EFFECTIVE TOP TUBE | 585 mm | 610 mm | 630 mm | 650 mm |
| SEAT TUBE CENTER TO TOP | 381 mm | 432 mm | 484 mm | 534 mm |
| HEAD TUBE | 105 mm | 120 mm | 135 mm | 150 mm |
| SEAT TUBE ANGLE | 73 deg | 73 deg | 73 deg | 73 deg |
| HEAD TUBE ANGLE | 70 deg | 70 deg | 70 deg | 70 deg |
| STANDOVER HEIGHT | Varies based on wheel and tire size | |||
| CHAINSTAY | 459 mm | 459 mm | 459 mm | 459 mm |
| BB DROP | 60 mm | 60 mm | 60 mm | 60 mm |
| REACH | 407 mm | 423 mm | 438 mm | 451 mm |
| STACK | 597 mm | 611 mm | 625 mm | 639 mm |
OWNER'S MANUAL
PO boxes not accepted. Shipping discounts or exclusions only apply within the lower 48 states of the US. Contact us if damage occurs during shipping.
Borealis offers a 30-day money-back guarantee. If you are unsatisfied with your purchase for any reason, you can cancel, exchange, or return your product for a full refund, minus any associated transaction fees and shipping costs. Customer is responsible for return shipping costs. Returned and exchanged items must be in sellable condition. Affirm transactions are subject to a 10% non-refundable transaction fee.
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
4.7 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 5
Stunning set will be loved by any Elder Scrolls fans
Format: Hardcover
It's hard to overstate how fantastic the production values on this set are. Bringing together the three previously published "Skyrim Library" volumes into a single box set, this is more than a collection of printed Elder Scrolls lore: it's a genuine collector's piece.
As noted, this set is made up of three hardcover volumes, each of them previously published as individual books. They are collected here in a beautifully designed box. The box is a clamshell design that completely encloses the books so you can't see their spines while on the shelf. The carving on Alduin's wall from the game Skyrim is depicted on the outside, along with display text for your bookshelf, and the interior has an illustration of Alduin himself.
Inside are the three hardcover books, and WOW are they gorgeous. Each is roughly 230 pages or so, give or take. The covers are a textured faux leather emblazoned with the Skyrim symbol. They feel hefty and weighty and are VERY well made. Truly impressive stuff.
Also impressive are the interiors. Each book is jam-packed with in-game texts, lore, and more from the Elder Scrolls series (though branded as "The Skyrim Library," much of the material here can be found in games like Oblivion and Morrowind, too). The pages are a thick, study paper stock and almost every page is lavishly illustrated.
As for the contents, they are terrific for any lover of the Elder Scrolls, Tamriel, and fantasy lore. Newbies will find this interesting and easy to get into, and old vets will delight in having this stuff in a nicely printed form.
Vol. 1 is The Histories. The four sections within -- History, Skyrim, Morrowind, and Dragons -- offer a pretty comprehensive reading of Tamriel history from the perspective of mankind, from the early days of man to current, along with loads of Skyrim-specific lore, a quick overview of Morrowind (too quick; I hope they one day publish something similar on that setting), and stuff on dragons.
Vol. 2 is Man, Mer, & Beast, covering the people and creatures of the world. In four sections -- Races, Creatures and Beasts, Warfare, and Factions -- you get extensive texts on the dwemer/dwarves, good material on other elves, texts on various factions operating in Skyrim, and more.
Finally, Vol. 3 is The Arcane, dealing in magic and the gods. The four sections here -- Magicka, Religion, 2910: The Last Year of the First Era, and Aedra and Daedra -- delve more into the arcane and obscure, getting into the metaphysical aspects of Tamriel lore, accounts of the world's early days, material on the minor gods, and more.
The material here is extensive, encompassing over 400 and maybe approaching 500 in-game books and texts. There is a LOT to sift through and read.
If you've read some of the series' many in-game books, you know what to expect. If not, you'll be getting dozens of well-written tales, essays and pieces about Tamriel (NOT just Skyrim) and the overall world of Nirn, presented as if they were written by people who live in the game world. They vary in quality and tone, from serious to whimsical.
That's a good thing, too. If one of the pieces doesn't catch your interest, just skip it. Each story is brief, usually only a page or two, making this a book you can just pick up and read for a few moments at a time without having to invest yourself. Things are arranged so if you want to read the books straight through you'll get clear thematic narratives, but it's not necessary to read them that way. You can skip around to the things that interest you.
All in all, this set is GORGEOUS and is PACKED with stuff that will delight fans of the Elder Scrolls series, even those who prefer Morrowind, Daggerfall, or Oblivion to Skyrim. (No one actually prefers Arena to Skyrim, right?) The retail price seems a bit steep at $100, but the production quality makes it a decent purchase. Amazon's price is far batter than that, making this a no-brainer for lovers of Tamtriel lore.
About my only complaint is the box's clamshell design, which makes accessing the books inside a bit of a pain and which does not match the equally gorgeous
. They SHOULD look like a matching set when on the shelf -- the five individual books of the these two sets certainly do when removed from their respective boxes -- but the box designs are too different for that. My best guess is that maybe the clamshell design was used because it's sturdier and these are heavy books? Just a guess.
But that's a nitpick from someone who likes his shelves to have a nice, matching look.
Overall, great stuff. Huge thumbs up for fans of the series. Whether you are new to Elder Scrolls lore or are an old fan of it, either way you'll find a lot to like here.
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Reviewed in the United States on September 12, 2017
★★★★★ 5
Beautiful gift!
Format: Hardcover
Bought this for my father as a birthday gift. He absolutely loved it. It is beautifully illustrated, and if you just want a quick read, you can grab one of the books and open it to a page for one of the books inside the game itself.
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Reviewed in the United States on May 2, 2026
★★★★★ 5
Yet another great set!
Format: Hardcover
Due to hurricane irma in my area, this set was delayed to me. I was also out of power for a while, but now I have power and I also got my package today! I did pre-order this set along with the elder scrolls online book set.
The set itself is huge. Has that good old classic skyrim artwork in the front there and inside it has the dragon. It's held together by a magnetic clip, which I do always enjoy.
Now let's get to the good stuff, the books themselves. These are basically re-published versions of the original skyrim library if you haven't already bought those separately. Right off the bat I will recommend this set to collectors, and anyone who loves elder scrolls lore.
Book 1 Or should I say Volume 1 Is about the histories, which are the history of the land itself, a brief history about morrowind, and of course dragons. I for one was trying to collect an in game collection of books, but there is so many of them that it's simply easier to read this for the entire thing. All in all, the histories are pretty intriguing because most of the history explained in the game is usually through someone else's perspective. Overall a great read.
Volume 2 is about Man, Mer and Beast. Which basically goes into every single detail about all the races in skyrim, along with their traditions and the way they live kind of thing. The beast section is just that, detailed information about the beasts of skyrim, their legends and how they are in the wild. The last 2 sections are about warfare and fractions. Fractions history that you may or may not know like the companions or whatever fraction you joined in game. And warfare which is about the art of warfare and it's stories.
Volume 3 the last volume is about the arcane, basically magic in skyrim it's history, it's religion, and it's stories. Yep there is a lot of history behind magic in skyrim if they made a whole book about it. The last section is interesting that it talks about Aedra and Daedra, Which is like Angels and Devils in skyrim simple terms. I mean most of the daedra are unpredictable despite their evil nature in the game. Like that daedra prince who just wants drinking party's and such, or that other daedra who just enjoyes tricking people. Overall though they are supposed to be evil. If you summon one of those guys in town I think you get an instant bounty. Anyways, the history about it is very intriguing.
The books themselves by the way are just fantastic. AAA quality right here, Nice to the touch as well as its engravings. As like for the elder scrolls online set, you do not have to worry about bending the pages because of the books design. Every page as always has some kind of illustration next to it, giving every page in all these books some life to it. Although this one is a lot more text heavy than the elder scrolls online lore books.
This set is fantastic! I wish Bethesda created sets about the older lore like morrowind or oblivion, but that's just my opinion. If they ever did more books
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Reviewed in the United States on September 15, 2017
★★★★★ 5
Love it
Format: Hardcover
Very cool
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Reviewed in the United States on May 16, 2026
★★★★★ 5
Great
Format: Hardcover
Great quality
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Reviewed in the United States on May 3, 2026
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