Profile Spline Drive Sprocket - 25t Black

• 7075 Aluminum for strength and durability
• Heat-Treated CrMo insert keys into 19mm 48 spline BB spindles for a rock-solid connection with no sprocket bolts
• Available in 23, 25, 28, 30 tooth versions, larger sizes to come
• Available in Red, Green, Blue, Black, Orange, Purple, Silver
• 25t weighs 2.9oz (82g), (you save .8oz (22g) by running a No Boss crank arm)