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Wolf Tooth's SDM® chainrings replace your existing spider and chainring with one clean looking, light weight, and stiff piece of machined billet. These come in 3 different offsets: standard GXP, Boost and BB30.
Compatibility:
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These direct mount chainrings will replace your existing chainring and spider, which is attached via 3 bolts on the back side of the spider near the spindle. You will use these same 3 bolts to attach the Wolf Tooth SDM® chainring.
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Boost: 52mm chainline, 3mm offset
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Compatible with all 10, 11, and 12 speed chains (Including SRAM Eagle)
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If using a 9 speed drivetrain use a 10 speed chain (shifts and works well on a 9 speed drivetrain and fits the ring tighter for better chain retention).
TECH SPECS:
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Design and manufactured in Minneapolis, MN USA
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Wolf Tooth’s patented Drop-Stop® wide/narrow tooth profile for the ultimate chain retention and mud shedding ability
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Recommend the use of a clutch style rear derailleur for the best chain security.
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Material 7075-T6
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Colors - black
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Chainline -
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47mm on cyclocross and road with 6mm offset ring
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49mm for standard non-boost (135/142mm rear hub spacing) with 6mm or 0mm offset (see compatibility above for which offset you need
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52mm for Boost with 3mm offset (148mm rear hub spacing)
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A T25 Torx wrench is required to remove the bolts that secure the the chainring or spider to the crankarm.
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An L-wrench works best since the crank spindle may contact a socket adapter and prevent it from engaging properly.
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Use the same 3 bolts to attach the Wolf Tooth ring
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Weight - 26t - 52g, 28t - 59g, 30t - 65g, 32t - 70g, 34t - 75g, 36t - 81g, 38t - 90g, 40t - 106g, 42t - 111g