This SLR2 cassette is designed around the standard HG freehub spline, so it fits wheels built for Shimano 11-speed style freehubs, and works well with Shimano 12-speed compatible derailleurs and shifters set up for this range. If your groupset is SRAM AXS or uses an XD/XDR driver, we recommend confirming your freehub body type with us or your local mechanic before ordering, since XD-specific cassettes are a separate product line. Genuine ZTTO parts are sourced directly so you can be confident on quality even while double-checking spline compatibility.

SLR2 refers to ZTTO's second-generation Super Light Race cassette, a lighter alternative built with CNC-machined cogs on the larger sprockets combined with steel for the smaller, high-wear cogs. Compared to ZTTO's all-steel 12-speed cassettes, the SLR2 shaves noticeable weight for climbing and racing while retaining enough steel content on frequently used cogs for durability. It suits riders who want a performance upgrade without going all the way to a top-tier Shimano or SRAM cassette.

An 11-32T 12-speed spread gives a wide enough low gear for most rolling and moderately steep climbs, making it a solid all-rounder for city rides, highway touring and rolling hill terrain across India. For genuinely steep, sustained climbs such as high Himalayan passes, riders often prefer a wider-range option like ZTTO's 11-34T or 11-36T steel cassettes for extra spinning room. If most of your riding is flat-to-rolling with occasional hills, the 11-32T strikes a good balance between range and tighter gear steps for efficient pedaling.

The SLR2 range is marketed by ZTTO as a lightweight option using mixed construction, and it is noticeably lighter on the scale than a full steel 12-speed cassette of the same range. We would rather not quote an exact gram figure here since published weights can vary slightly by batch and cog count, but customers upgrading from steel report a worthwhile weight saving for climbing-focused or racing setups. If exact weight is critical to your build, feel free to reach out and we will share the latest spec details before you order.

Yes, DoGoodCo sources this SLR2 cassette directly through verified ZTTO supply channels, so you receive an authentic component rather than a duplicate or grey-market copy that's common with cheaper drivetrain parts sold online in India. Genuine construction matters here because a mismatched or fake cassette can wear out chains and derailleurs prematurely. All listed prices are GST-inclusive, so there are no surprise charges at checkout.

Installing a 12-speed cassette needs a cassette lockring tool and a chain whip, the same tools used for any modern Shimano or SRAM cassette swap, and most local bike mechanics in India can fit it in about 15-20 minutes. If you are comfortable with basic home maintenance, it's also a straightforward DIY job once you have the right lockring tool for a 12-speed freehub. We recommend having a shop check chain and derailleur alignment after installation for the smoothest shifting.

Orders are dispatched within up to 3 working days of confirmation, and the total delivery time after that depends on your specific pin code and courier serviceability in your area. We're unable to promise an exact day-count since delivery speed varies by location across India. Please note all orders are prepaid at checkout, as cash on delivery isn't available on DoGoodCo.

Yes, the SLR2's steel construction on the smaller, most-used cogs helps it hold up to regular chain wear, dust and monsoon riding conditions common across Indian cities and highways. Riders should still keep the drivetrain clean and lubricated regularly, as with any lightweight cassette, since reduced material on larger cogs can be more sensitive to grit buildup. With reasonable care, this cassette offers a good balance of performance and everyday reliability for road and gravel riders.