MRP 1x Upper Guide Seattube Fitting
Developed with World Cup powerhouse Adam Craig, the 1x (pronounced one-bye) is purpose-built for cross country riding with a 1x9 drive train. If you are running 1x9 and don’t need a bash guard, this is the ticket.
No more homemade contraptions needed! Fits seat tube sizes 28.6, 31.8 & 34.9mm (with supplied rubber shims).
MTB chainline = 49-51mm for middle chainring position on MTB Triple crank.
MRP also gave the MTB version significantly more vertical adjustment, due to the small chainrings that will be used (32t is common) and the large quantity of carbon bikes with flared seat tubes at the BB junction.
Chain devices fit in various places around a mountain bikes transmission and help to eliminate chain suck and chain slap when riding over rough terrain or landing from big drops. There are a number of fitments, some frames have ISCG mounts which are lugs on the drive-side of the bottom bracket shell and allow direct fitment to the frame, other chain devices fit in between the bottom bracket and frame and require a specific bottom bracket with a larger drive-side cup, and finally there is the type that clamp around the seat tube in place of the front mech. Also within this section you can find single speed chain tensioners which fit in place of the rear mech and take up any chain slack.There is also a selection of wheel tugs which stop you pulling your wheel over in horizontal dropouts.
MRP have been producing high quality cycle chain guide systems since 1996. MRP guides are the consistent choice of the world’s best riders in every discipline on the mountain. Just ask the legends of the sport what chain guide they insist on using year after year. The answer is always ""MRP"" for their quality, dependability, and reliability.
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