Pedros Pro Chain WhipThe Pedros Pro Chain Whip uses innovative chain retention hook locks onto cassette to prevent slipping. The tool’s geometry gives you a good grip with a compact 270mm design. Compatible with multi gear cassettes up to 12 speeds. The chain retention hook fits cogs up to 18 teeth. The integrated fixed gear lockring wrench fits cogs up to 18 teeth. Weighs only 225g.790983296773