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SRAM unveil new XX mountain bike groupset

In addition to the usual front derailleur sizes, SRAM will also offer XX in four direct mount fitments in both top and bottom pull versions

  • The Truvativ XX crank shifts the chainline inboard for two-ring use so that all gear combinations are quiet and smooth
  • The Truvativ XX crank shifts the chainline inboard for two-ring use so that all gear combinations are quiet and smooth
  • The BB30 version of the Truvativ XX crank is the lightest in the line at just 694g
  • A small threaded collar allows for fine bearing adjustment on the BB30 version
  • Truvativ XX cranksets will be offered in four bottom bracket styles: GXP, BB30 and press-fit versions of both
  • The chainring bolts thread directly into the crankarm or into the chainring for reduced complexity and a stiffer foundation
  • The star of the XX group is the new X-Dome cassette which is based on the Red group's PowerDome design but heavily relieved for use in muddy conditions and with drastically improved tooth profiles
  • The aluminium back plate on the XX cassette doubles as the largest cog and is individually replaceable
  • The new X-Glide tooth profiles are substantially quieter than before and shift far more smoothly than anything we've yet seen from SRAM
  • Any issues with mud and debris packing up the cassette are seemingly abated with XX's heavily milled-out structure
  • The pull lever is still adjustable for angle but now 3mm shorter than X.0 and made of carbon fibre
  • The rear derailleur is lighter than X.0 by virtue of forged magnesium and more carbon fibre
  • The cable has been moved further inboard to provide more protection against damage
  • The XX derailleur is by far SRAM's lightest off-road model to date
  • Widely set pivots and alloy and titanium hardware keep things stiff and light
  • High mount models use a stainless steel band clamp that conforms nicely around carbon seat tubes and grips more tightly with fewer pressure points
  • In addition to the usual front derailleur sizes, SRAM will also offer XX in four direct mount fitments in both top and bottom pull versions
  • The Avid XX brake is similar to the Elixir CR Mag but with even lighter weight and a more compact master cylinder
  • The new two-piece Avid XX caliper is made from forged magnesium and fitted with titanium hardware
  • A new two-piece rotor uses a stainless steel brake track for predictable performance but an aluminium carrier for reduced weight
  • Reach adjustment on the Avid XX brakes requires a 2mm wrench
  • The new XLoc design is not only light but also very cleanly integrated into the cockpit
  • The new MatchMaker X clamps are far cleaner in appearance than the original MatchMaker, especially when the XLoc remote is added on
  • SRAM have adopted T25 Torx bolts for nearly everything on XX for easier installation, maintenance and adjustment - not to mention slightly lighter weight as it allows for shallower bolt heads
  • RockShox will also add several XX-level forks to the mix with travel ranging from 80-150mm
  • The top-end SID XX World Cup now uses a one-piece carbon fibre crown and steerer tube
  • The hydraulic XLoc fitting atop the fork features a freely spinning banjo for cleaner routing
  • Our test bike for the launch was a Merida Ninety-Six - a lightning-quick race steed that was still fun to ride on more challenging trails

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In addition to the usual front derailleur sizes, SRAM will also offer XX in four direct mount fitments in both top and bottom pull versions

© James Huang