E Thirteen are fast establishing themselves recognition amongst the mountain bike community as providers of some of the finest quality chain guides, chain tensioners and drivetrain components on the market. Just take a look at any World Cup round or World Championship race and see how many riders choose E 13 Components to keep them ahead of the pack. Each E 13 chainguide is the result of hours of meticulous design and engineering as well as extensive field testing on the race circuit in order to provide Downhillers, Trail Riders and XC racers with the same high quality, smooth-running components that the Pros use.

With the onset of the 10-speed drivetrain and large range cassettes, more and more riders are looking to setup their XC and All Mountain bikes with a single chainring up front and doing away with the extra chainrings and front derailleur. As you can run a shorter chain and smaller cage rear derailleur, the shifting at the rear will be crisper, and with a guide like the XCX keeping your chain in place on the front chainring, you are far less likely to drop a chain.
With a removable cage and adjustable height for different chainrings, the XCX chain guide is simple to install and setup and the bottom bracket mount means it will fit onto the majority of frames on the market.

From E*13:

"The brainchild of World Cup mechanic and now Hive Brand OE & International Distributor Ninja Jonas Mikolayunas, the XCX Chain Retention System has literally been years in the making. The XCX, has been used by friends and employees of e*thirteen since 2004 and now has been proven at the highest levels of competition right out of the gate. Having won the Men's Elite Silver medal in the 2009 UCI World Championship Cross Country race the XCX is the first chain retention system in the world to podium at a international World Cup XC event. Primary Uses: XC Race, 1-by set-ups"

The E*13 XCX Chain Guide features:

• Extremely light at 56 grams! 
• World Championship gold medal-proven top slider design
• Easily change chains and chainrings w/o removing wearplate 
• Wearplate has chainring size indicators for simple adjustment
• 1.5 mm backplate spacing with provided 0.5 mm spacers allows perfect setup
• Gear range of 32T - 42T, small enough for the steep Mont Saint Anne climbs and big enough to win Glouchester, Massachusetts!
• 7075 aluminum backplate
• Weight: 56 grams

Check out E*13 Components for the most funtional chain guides on the market