1987 CollectionWhen we started chasing the dream of a better ride, we could never have predicted what wed be riding some 38 years later. But the realization of Eagle Transmission remains true to day one. And while were never satisfied, were taking a moment to celebrate with the 1987 Collection. CassetteRooted in the architecture of our lightest weight MTB cassette, XX SL, we were able to shave off an additional 25 grams without sacrificing performance or durability. Same 10-52T range, same X-Sync teeth for game-changing best shift under load performance. Lightest-weight T-Type cassette shaves an additional 25g from benchmark XX SL cassetteNot compatible with E-MTBPower Meter CranksetTake the most advanced aluminum crankset weve ever made, X0 T-Type, and pair it with our most accurate and integrated power meter. The dual-sided power measurement system calculates total watts while being subtle, lightweight, and boasting an unbeatable battery life. The ground-breaking crankset offers