Collection: Crestone Options

Crestone Options

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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.

      Assembly Video 

       

      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

        Eagle NX Eagle GX Eagle X01 Eagle XX
        Crankset SRAM Eagle NX SRAM Eagle GX SRAM Eagle X01 SRAM Eagle XX
        Crank Arms 175mm Alloy 175 Alloy 175mm Carbon 175mm Carbon
        Rear Derailleur RD ENX 1 x 12 RD EGX 1 x 12 RD EXO 1 x 12 RD EXX 1 x 12
        Chain KMC X12 KMC X12
        KMC X12
        SRAM XX
        Cassette PG 1230 11-50 XG 1275 10-52 XG 1295 10-52 XG 1299 10-50 Gold
        Shifter SRAM Eagle NX SRAM Eagle GX SRAM Eagle X01 SRAM Eagle XX1
        Brakes SRAM - Select SRAM - Select SRAM - Select SRAM - Select
        Chain Ring SRAM 30T X-Sync
        Frame Borealis Crestone Carbon
        Fork Borealis Carbon Rigid Fork
        Headset FSA
        Hubs Borealis: Front 15×150 Rear 12×197
        Rims 26" or 27.5" Sun Ringle Mulefut V2
        Spokes Borealis Straight Gauge
        Nipples Borealis Silver Brass
        Tires Your Choice
        Bar RaceFace Next SL Carbon
        Stem Borealis 50mm or 70mm
        Post RaceFace Next SL Carbon 31.6
        Saddle Borealis
        Grips Borealis
        Bottom Bracket SRAM DUB 100mm
        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

        Download Owner's Manual

         

        $1,999.00
        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.

            Assembly Video 

             

            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

              Eagle NX Eagle GX Eagle X01 Eagle XX
              Crankset SRAM Eagle NX SRAM Eagle GX SRAM Eagle X01 SRAM Eagle XX
              Crank Arms 175mm Alloy 175 Alloy 175mm Carbon 175mm Carbon
              Rear Derailleur RD ENX 1 x 12 RD EGX 1 x 12 RD EXO 1 x 12 RD EXX 1 x 12
              Chain KMC X12 KMC X12
              KMC X12
              SRAM XX
              Cassette PG 1230 11-50 XG 1275 10-52 XG 1295 10-52 XG 1299 10-50 Gold
              Shifter SRAM Eagle NX SRAM Eagle GX SRAM Eagle X01 SRAM Eagle XX1
              Brakes SRAM - Select SRAM - Select SRAM - Select SRAM - Select
              Chain Ring SRAM 30T X-Sync
              Frame Borealis Crestone Carbon
              Fork Borealis Carbon Rigid Fork
              Headset FSA
              Hubs Borealis: Front 15×150 Rear 12×197
              Rims 26" or 27.5" Sun Ringle Mulefut V2
              Spokes Borealis Straight Gauge
              Nipples Borealis Silver Brass
              Tires Your Choice
              Bar RaceFace Next SL Carbon
              Stem Borealis 50mm or 70mm
              Post RaceFace Next SL Carbon 31.6
              Saddle Borealis
              Grips Borealis
              Bottom Bracket SRAM DUB 100mm
              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

              Download Owner's Manual

               

              $1,999.00
              Since 2013, Borealis has specialized in lightweight carbon fiber fat bikes. The tried and true, Carbon Fiber Crestone is our flagship model. Its frame geometry is optimized for riding in snow and sand with clearance for up to 5” wide tires. Paired with the most technically advanced components in the industry, the Crestone sets the standard for premium quality carbon fiber fat bikes.

              HIGHLIGHTS:

              • Frame geometry provides responsive and nimble handling for variable conditions in snow or sand.
              • Internally routed cables.
              • Tire clearance up to 26x5” and 27.5x4.5”.
              • Compatibility for 100-120mm of suspension travel for more technical riding.
              • Lightweight, durable carbon fiber frame comes with 2-3 bottle cage mounts and lizard skin protectors on both the down tube and drive-side chain stay.
              • Available as frame only or as a frameset which includes a fork.

              SPECS

              Frame includes:

              • Chainstay and seatstay protectors
              • Seatpost collar
              • Rear axle and derailleur hanger

              Frameset includes all of the above as well as:

              • Complete headset and compression plug/ star nut
              • Front axle

              All frames are covered by a 5 year warranty and crash replacement program.

              RIDER HEIGHT RECOMMENDATIONS
              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.

              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
              $1,000.00
              Since 2013, Borealis has specialized in lightweight carbon fiber fat bikes. The tried and true, Carbon Fiber Crestone is our flagship model. Its frame geometry is optimized for riding in snow and sand with clearance for up to 5” wide tires. Paired with the most technically advanced components in the industry, the Crestone sets the standard for premium quality carbon fiber fat bikes.

              HIGHLIGHTS:

              • Frame geometry provides responsive and nimble handling for variable conditions in snow or sand.
              • Internally routed cables.
              • Tire clearance up to 26x5” and 27.5x4.5”.
              • Compatibility for 100-120mm of suspension travel for more technical riding.
              • Lightweight, durable carbon fiber frame comes with 2-3 bottle cage mounts and lizard skin protectors on both the down tube and drive-side chain stay.
              • Available as frame only or as a frameset which includes a fork.

              SPECS

              Frame includes:

              • Chainstay and seatstay protectors
              • Seatpost collar
              • Rear axle and derailleur hanger

              Frameset includes all of the above as well as:

              • Complete headset and compression plug/ star nut
              • Front axle

              All frames are covered by a 5 year warranty and crash replacement program.

              RIDER HEIGHT RECOMMENDATIONS
              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.

              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
              $1,000.00