A chainwhip is the cassette-holding half of the cassette-removal workflow: the lockring tool turns the lockring; the chainwhip stops the cassette from spinning with it. The 1660/2DP-US is Unior's revised multispeed chainwhip, sized to cover multi-speed cassettes from 6- to 12-speed, including SRAM X-range cassettes. A magnet holds the chain in place for storage, and a long double-dipped handle gives the leverage Unior specifies, so the cassette comes off without slippage. The magnet holds the chain in place against the body and makes storage easier: the chain stays parked when you set the tool down. Pick it up, wrap the chain on a cog, and work. The double-dipped handle is the other one. The chainwhip works against the lockring tool's torque, so the long double-dipped handle is the leverage Unior specifies: ergonomic shape, no slippage, a grip that stays positive when the bench is hot. How to use it Wrap the chain segment around one of the larger cogs on the cassette; for most workflows, the third or fourth cog from the largest end. The magnet releases as the chain seats. Hold the chainwhip handle counter-rotational to the lockring tool's swing. As the lockring turns counter-clockwise, the chainwhip resists clockwise; the chain pulls tighter against the cog as the resistance builds, which locks the engagement. Keep the handle steady through the break-free. The 1660/2DP-US is designed to work with multi-speed cassettes from 6- to 12-speed, including SRAM X-range cassettes. Wrap the chain on a larger cog; Unior's official companion lockring tools do the turning. Compatibility Multi-speed cassettes from 6- to 12-speed Including SRAM X-range cassettes Pair with a Unior cassette lockring tool: 1670.5/4, 1670.7/4, 1670.9/4, or 1670.8/2BI-US Not for 1/8 inch fixed-gear or singlespeed cassette sprockets; those take the 1659/2DP-US Magnet holds the chain in place for storage; long double-dipped handle for leverage For 10-tooth small cogs on SRAM AXS X-Range cassettes, a chainwhip wrapped around the small cog is awkward; we recommend the Cassette Wrench X Range instead, with the chainwhip as backup on the larger cogs. Single-speed and fixed-gear builds need the Singlespeed Chainwhip 1659/2DP, which has an integrated lockring tool for fixed-gear lockrings. Specs Double plastic dipped handle Magnet holds the chain in place and makes storage easier Compatible with 6- to 12-speed including SRAM X-range Article number: 1660/2DP-US; SKU 628904; length 323 mm, height 9 mm, width 62 mm; 266 g; premium flex plus carbon steel; trivalent chrome plated to ISO 1456:2009; Unior lifetime warranty Built in Zreče, Slovenia Unior has been forging hand tools in Zreče since 1919, and sponsors professional road and mountain-bike race teams. The 1660/2DP-US carries a magnet that parks the chain on the body, a long double-dipped handle for leverage, and official 6- to 12-speed coverage including SRAM X-range. The previous design worked; this one is faster across a day of cassette work, which is the kind of compound saving that pays back the tool inside a season of shop use. Pro tip from our mechanics Most home mechanics buy a chainwhip and use it on one or two specific cassettes, which makes any chainwhip feel fine. Buy the tool you'd want if you had ten cassettes to do in an afternoon. The magnet and the handle on the 1660/2DP-US are the details that show up across that volume of work, not on the first swap. Pair it with the Integrated Cassette Lockring Wrench 1670.8/2BI-US and you've got the full cassette-removal toolset in two pieces. The cassette-replacement workflow walks through holder-and-lockring pairing per drivetrain: When and how to replace your cassette → FAQ What cassette speeds does the 1660/2DP-US cover? Unior specifies multi-speed cassettes from 6- to 12-speed, including SRAM X-range cassettes. That is the official coverage sentence. Wrap the chain on one of the larger cogs; the third or fourth from the biggest end is the usual seat. Is this the whip for a singlespeed or fixed-gear cog? No. 1/8 inch fixed-gear sprockets and singlespeed cassette sprockets take the sibling 1659/2DP-US, which also has a lockring wrench built into the body for fixed-gear lockrings. The 1660/2DP-US is the multispeed 6- to 12-speed tool. Do I still need a lockring tool if I buy this chain whip? Yes. The whip holds the cassette still; a lockring tool turns the lockring. Unior lists the 1670.5/4 lockring tool, the 1670.7/4 with guide pin, the 1670.9/4 with a 12 mm guide pin, and the handled 1670.8/2BI-US as companions. Which one you want depends on the hub, not on this whip. What is the Multispeed Chainwhip made of, and how big is it? Premium flex plus carbon steel, laser-cut and heat-treated, trivalent chrome plated to ISO 1456:2009, with a long double-dipped handle and a magnet that parks the chain. Official dimensions: 323 mm long, 9 mm thick, 62 mm wide, 266 g. Article 1660/2DP-US, SKU 628904, Unior lifetime warranty.
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