i may be reading this wrong:
9 Speed Compatible: Precision shifting for narrow-spaced 9-speed cassette sprockets. 11-Tooth Pulleys: Alternating contact with chain links reduces wear, larger pulley diameter runs smoother, lasts longer.
Speeds-9-Speed
Max Sprocket-27T
Min Sprocket-11T
Front Difference-22T
Total Capacity-37T
Parallelogram Spring Adjuster-no
Guide Pulley-sintered alloy bushing
Tension Pulley-sintered alloy bushing
11T Pulley-yes
Bracket Body-aluminum/clear coated
Bracket Body Pivot Seal-no
Plate Body-aluminum/clear coated
Plate Body Pivot Seal-no
Outer Link-aluminum/clear coated
Inner Link-steel/pearl bright
Sealed Link Pins-outer link
Link Pin Bushings-fluorine coated (2)
Outer Plat-aluminum/anodized
Inner Plate-aluminum/barrel
Silver or Black.
230 gms for 25 bucks, i figured is better than 100 for xtr or ultegra... i'm looking for best bang/buck ratio and not necessarily "race bike" stats. so yeah, i think it'd be a good choice...