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Truvativ XX Crankset
Coming
in at 694 grams (BB30), the XX Crank delivers amazing performance and
durability with no penalties in weight. The first MTB crank
specifically designed for 2x10 uses some of the world’s most advanced
material science. 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 XX Crank
geometry provides a narrow 156mm Q factor, efficient chainline, and
beveled crank arms to maximize clearance. It’s pure science in action. Our way of thinking. The concept 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. However, making this idea an
engineering reality was quite another thing. Prototype after prototype
was built, ridden, and analyzed until we got it right. The outcome is
lightning-fast and accurate front shifting, through an all-new,
patented, mind-blowing performance technology: X-Glide. 
X-Glide is the common denominator that gives XX its unmatched shifting
performance. 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! 
| WEIGHT: |
694g (BB30),
754g (GXP w/ BB) |
| CHAINLINE: |
49.5 |
| CHAINRING MATERIAL: |
AL-7075-T651 |
| CHAINRING COLOR: |
Tungsten gray and silver |
| CHAINRING BOLTS: |
AL-7075-T6 |
| CRANK-ARM MATERIALS: |
Integrated carbon composite/aluminum spider construction |
| COMPATIBILITY CHAIN: |
Optimized for SRAM PC 1090 or PC 1090R |
| CRANK-ARM LENGTH OPTIONS: |
170mm and 175mm |
| CHAINRING OPTIONS: |
26-39 (120/80 BCD), 28-42 (120/80 BCD), |
| BOTTOM BRACKET OPTIONS: |
GXP, PressFit GXP, BB30, and PressFit 30 |
| (BlackBox® Ceramic Bearings standard on all BB options) |
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