Kit: Sram XX, Mavic Crossmax ST 29


29er Factory Mountain Wheels
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The Mavic Crossmax ST 29 showcases versatility at its best offering a perfect balance of strength and light weight to go up and down the mountains fast and for a long time. A wider 23mm external rim width adds overall strength while increasing a tires' contact patch. Rims are machined both on the sidewall and inner diameter to shave weight without compromising strength. Fast rolling ITS-4 hubs use 4 pawls, working 2 by 2, to provide very fast engagement and improved ride dynamics. Complete wheelset weight: 1710 g.

Weight: 1710 grams/pair.
Size: 29-inch
Front Axle: 15mm thru-axle
Rear Axle: 135/142mm QR

Important Information
Shop time: Please allow 3-5 business days prior to shipping for orders that include factory wheels.
Adult signature required for delivery of wheels.
Select Tire
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This kit is priced using the Maxxis Ignitor 29x2.1, Fast-rolling, nicely spaced knobs are multi-shaped to help shed mud and grip in loose terrain, and are reinforced to step quicker and last longer.

Size: 29 x 2.1
Weight: 705 g.
TPI: 60
Bead: Foldable

If you would prefer a different tire, choose any tire listed in the drop-down menu.
Select Rear Tire
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This kit is priced using the Maxxis Ignitor 29x2.1, Fast-rolling, nicely spaced knobs are multi-shaped to help shed mud and grip in loose terrain, and are reinforced to step quicker and last longer.

Size: 29 x 2.1
Weight: 705 g.
TPI: 60
Bead: Foldable

If you would prefer a different tire, choose any tire listed in the drop-down menu.
Mountain Tires, Tubes
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Size: 29 x 1.9–2.3, Removable Presta valve
Valve length: 32mm
Weight: 229 grams
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Two cassettes enter, one cassette leaves as the evolutionary SRAM XG-1099 XX 10-Speed cassette takes center stage with its incredibly lightweight status, precise shifting abilities, and superior Thunderdome-worthy strength. X-Dome CNC-machines together eight cogs from a single block of billet steel. X-Glide technology creates four identical up-shift locations able to be picked up by any outer link for perfect timing and near instant shifting. Open design aids in mud clearance to give you cleaner shifting performance and longer component life, while the aluminum large cog can be replaced as needed.

Gear Range: 11-32 or 11-36
Weight: 185 g. (11-32)
11-32: 11-12-14-16-18-20-22-25-28-32
11-36: 11-12-14-16-18-21-24-28-32-36

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Weight: 257 g. (114 link)

Hollowpin construction provides smooth, precise shifting and weight savings without sacrificing strength. Powerlock tool-less connecting link
Derailleurs, Front
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Clamp-on: 1-1/4" or 1-3/8"
Weight: 118 g.

If you're looking for beefy stealth, consider the XX front derailleur which shifts across the entire gearing range with near nil chain rub and a granny gear that can be cross-chained within one or two cogs without cage rub. The cage is steel and its parallelogram arms are forged aluminum. Thin, flexible clamp is lightweight and conforms easily to non-round tubes. The return-spring tension is boosted to force crisp direct-mount frame interfaces and in high and low-pull cable configurations. Lightning fast two-chainring derailleur is designed from scratch specifically for 2x10.

  • Steel cage
  • Forged aluminum body
  • Hardware: TORX T25 bolts
  • Cable routing: top pull
  • Two shifting positions
Derailleurs, Rear
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For MTB 2x10 gearing configurations
Medium cage
Weight: 181 g.

2x10-speed compatible Leveraging the legendary history of SRAM shifting, the XX Rear derailleur delivers incredible speed and precision. Sealed ceramic pulleys give you the highest levels of durability, while Exact Actuation technology eliminates slop and shifting variation.

  • Exact Actuation Ration moves the derailleur the same distance for each shift
  • Carbon fiber pulley cage holds ceramic bearing pulleys
  • Forged magnesium rear linkage and cable guide fin
  • Titanium spring, titanium and aluminum T25 TORX hardware
Brake Levers, Shifters
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Weight: 183 g./pair

Precise contol careening down a rocky trail or through a mud bog and up into a gravel field is what the SRAM XX 2x10-Speed Trigger shifter is all about. One of the lightest and most compact shifters ever created, the XX Trigger features a fully adjustable carbon fiber lever for maximum durability with no weight penalty. XX uses Exact Actuation to deliver an identical 3mm adjustment between each gear on the cassette, replacing the typical slop found between gears with a crisp, clean, and immediate shift. This consistent, precise adjustment means smoother, faster, and better shifting with no variation in pull effort from gear to gear. Matchmaker X clamp mounts both the brake lever and the shifter, reducing weight and redundancy, while maximizing adjustability and bar space.

  • Ambidextrous mounting
  • Medial/lateral and rotational adjustability around the bar
  • Carbon fiber cover, composite lower cover
  • Carbon fiber pull; composite release
Brake Pads, Cables, Parts
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Shimano SIS Derailleur Housing features 8 feet of black Shimano Derailleur Housing for shifting cables. Endcaps are included.
Cranksets, Bottom Brackets
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Lengths: 170mm, 175mm
Chainrings: 26x39, 28x42
Weight: 754 g

Bottom Bracket Sold Separately

Coming in at 754 grams, the Sram XX Crank delivers amazing performance and durability with no penalties in weight. The oversized chainrings are CNC machined 7075 aluminum blanks-2mm thicker than the competition. Unparalleled stiffness is delivered by an increased Bolt Circle Diameter (BCD) and a two-piece insert-molded carbon composite construction. The crank geometry provides a narrow 156mm Q factor, an efficient chainline, and beveled crank arms to maximize clearance.

Patented X-Glide chainring technology delivers accurate, lightning fast front shifts. The development concept for X-Glide was simple: create a geometry that allows each chainring to be divided into equal segments, much like a pie. Then, perfect the up-and downshift timing for one segment, and repeat that for each of them. With X-Glide, all four upshift locations are identical and can be picked up by any outer link. The result? Up and down shift locations have perfect timing, for an almost instant shift-even under load!

BB Not Included.
Bottom Bracket
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Weight: 128 g.

For use with Sram XX cranksets
Compatible with 68 mm and 73mm shells

While other systems rely on side loading the bearings to eliminate play (which causes premature bearing wear), the SRAM GXP bottom bracket system is different. The GXP system positions the left side bearing between the spindle and the left crankarm, while allowing the drive-side bearing to float axially on the spindle, thereby eliminating the necessity to side-load bearings during adjustment. GXP's design allows greater variation in BB shell alignment, maintaining precision and performance regardless of thread and construction irregularities in the frame. Installation is simple: once it is tightened to the proper specifications you are ready to roll with a worry free bottom bracket employing two bicycle specific cartridge bearings and eight seals for a smooth and long lasting ride.
Select Headset
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This kit is priced using the Chris King NoThreadset 1-1/8One of the most renowned components in the cycling universe, the Chris King headset is simply the best in the business. 7075 aluminum cups are built around the finest stainless steel bearings. 10-year warranty. Sotto Voce is available in black, navy, pewter, red or silver..

Weight: 98 g.

Please select the Chris King NoThreadset 1-1/8 or if you would prefer a different Headset, choose any Headset listed in the drop-down menu.
Headset Parts
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Douglas Carbon Headset Spacer Kit.
Select Saddle
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This kit is priced using the Douglas Race Evolution Saddle Please select the Race Evolution (the first selection) from the drop-down menu.

Rail Material: Tubular Titanium
Weight: 248 g.

  • Race Evolution combines ergonomic comfort and pro-level performance
  • A recessed center channel is comfortable against soft tissues
  • Newtech foam delivers maximum cushioning
  • Shell is tuned for the perfect combination of flex and stiffness
  • Lightweight tubular titanium rails

Length: 282mm
Width: 136mm

Please select the Douglas Race Evolution Saddle or if you would prefer a different Saddle, choose any Saddle listed in the drop-down menu.
Select Seatpost
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This kit is priced using the Easton EA70 Zero Seatpost, Easton's EA70 Zero seatpost is built with high-end TaperWall aluminum tubing and features a 2-bolt integrated head, allowing micro adjustments of the saddle position. Sleek, low-profile saddle clamp provides excellent stability, grip and saddle compatibility. Please select the Easton EA70 Zero Seatpost (the first selections) from the drop-down menu.

Weight: 250 grams(30.9 mm)
Seatpost Material:Aluminium

Please select the Easton EA70 Zero Seatpost or if you would prefer a different Seatpost, choose any Seatpost listed in the drop-down menu.
Select Handlebar
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This kit is priced using the Easton EA70 Riser Bar, Integrating the high-performance of EA70 aluminum alloy with proprietary TaperWall technology yields Easton's strongest and most popular aluminum riser bar. At just 265 grams, the Easton EA70 Riser bar provides a true, no compromises weight and performance advantage. Available in 40mm or 20mm rises with popular 9º back sweep and 685mm width for precise steering and a customizable cockpit. Black.

Material: Aluminum
Clamp Diameter: 31.8mm
Bend: 9 deg.
Rise: 20 or 40mm
Width: 685mm
Weight: 265 g.

Please select the Easton EA70 Riser Bar or if you would prefer a different Bar, choose any Bar listed in the drop-down menu.
Select Handlebar Stem
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This kit is priced using the Easton EA90 SL stem, with lightweight 3D forged aluminum allows Easton to shave excess material while retaining maximum strength. The Top Lock clamp design and DST faceplate distribute pressure safely across the handlebar's clamping surface, making the EA90 SL safe for carbon and aluminum bars. 31.8" bar. Please select the Easton EA90 SL (the first selections) from the drop-down menu.

Weight: 130 grams(100 mm)
Stem Material:Aluminium

Please select the Easton EA90 SL Stem or if you would prefer a different stem, choose any stem listed in the drop-down menu.
Handlebar Grips, Bar Ends
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The Da Bomb Holy Shift Locking Grips are beautifully simple and offer a bomber hold with any hand position, wet or dry. A soft outer layer of Kraton rubber features a unique grid pattern on half of the grip. When you wrap your fingers around the grip they immediately fall into place within the grid for a secure hold. Plus, the grid offers the ability to move your hands around and still maintain grip in the pattern. The Holy Shifts are perfect for carbon bars because the internal plastic sleeves protect the carbon, while double lock-on clamps secure grips in place. (Clamps included.)
Select Fork
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Receive 15% off all forks with a frame, bike or build kit purchase. Sale forks are excluded.


Components: Sram XX
Wheels: Mavic Crossmax ST 29 Disc
Enjoy the advantage of selecting from the finest components and the flexibility of upgrading components. Customize your build kit by selecting from the options available in the pull-down menus below.

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