The Hope 40T-Rex Expander Sprocket provides 10 speed junkies the option of big toothed cogs at a fraction of the cost of an entirely new drivetrain. This 40T cassette expander replaces one of the smaller cogs (usually the 17T) to convert your 11-36T cassette into an 11-40T; it's really that simple. Medium to long cage rear derailleurs are preferable, but an included 20mm B-Tension screw should get you going if your standard B-Tension screw is not long enough. The Hope 40T-Rex Expander Sprocket will allow you to expand your gear range without requiring new freehub bodies, shifters, and rear derailleurs.
CALIFORNIA PROPOSITION 65 WARNING: This product can expose you to chemicals including (Cadmium, Phthalates, Bisphenol, Nickel (Metallic), di(2-ethylhexyl)phthalate "DEHP"), which is known to the State of California to cause cancer and/or cause birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
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