{"product_id":"sumc-s12sl-pro-chain-12-speed-shimano-black-red","title":"SUMC S12SL PRO Chain 12 Speed Shimano Black Red","description":"\u003cp style=\"text-transform:uppercase;letter-spacing:2px;font-size:12px;color:#8a8a8a;font-weight:700;\"\u003eSUMC · FLAT TOP CHAIN · SHIMANO\u003c\/p\u003e\n\u003ch2\u003eSUMC S12SL PRO Chain — Shimano 12-Speed, Black Red Finish\u003c\/h2\u003e\n\u003cp\u003eFlat-top link design, hollow-machined ultra-light construction, and oil-sealed pins built for the long haul — finished in a bold Black Red plating.\u003c\/p\u003e\n\u003cdiv style=\"background:#f4f4f4;border-radius:10px;padding:20px 24px;text-align:center;margin:20px 0;\"\u003e\n\u003cdiv style=\"font-size:32px;font-weight:800;\"\u003e10,000 KM\u003c\/div\u003e\n\u003cdiv style=\"text-transform:uppercase;letter-spacing:1px;font-size:12px;color:#8a8a8a;\"\u003eRated Riding Distance, Oil-Sealed Pins\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;margin:20px 0;\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:50%;border:1px solid #e5e5e5;padding:16px;vertical-align:top;\"\u003e\n\u003cdiv style=\"font-size:20px;\"\u003e😈\u003c\/div\u003e\n\u003cb\u003eFlat-Top Design\u003c\/b\u003e\u003cp style=\"color:#8a8a8a;font-size:13px;margin:4px 0 0;\"\u003eSUMC is the only manufacturer producing a Shimano-compatible flat-top chain — a design otherwise exclusive to SRAM's own Flattop standard.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width:50%;border:1px solid #e5e5e5;padding:16px;vertical-align:top;\"\u003e\n\u003cdiv style=\"font-size:20px;\"\u003e⚖️\u003c\/div\u003e\n\u003cb\u003eHollow-Machined Ultra Light\u003c\/b\u003e\u003cp style=\"color:#8a8a8a;font-size:13px;margin:4px 0 0;\"\u003ePlates and pin shafts hollow-machined to 1-micron precision; pins hardened to 1600+HV with double-nitriding and titanium-nitride coating.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:50%;border:1px solid #e5e5e5;padding:16px;vertical-align:top;\"\u003e\n\u003cdiv style=\"font-size:20px;\"\u003e💧\u003c\/div\u003e\n\u003cb\u003eOil-Sealed Pins\u003c\/b\u003e\u003cp style=\"color:#8a8a8a;font-size:13px;margin:4px 0 0;\"\u003ePatented O-ring seals keep lubricant inside every roller, rated for up to 10,000km of riding.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width:50%;border:1px solid #e5e5e5;padding:16px;vertical-align:top;\"\u003e\n\u003cdiv style=\"font-size:20px;\"\u003e🌈\u003c\/div\u003e\n\u003cb\u003e10 Finish Colorways\u003c\/b\u003e\u003cp style=\"color:#8a8a8a;font-size:13px;margin:4px 0 0;\"\u003eSUMC's widest color range at this tier — build-matching finishes without giving up performance.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWhy Are These Shimano Chains Flat-Top?\u003c\/h3\u003e\n\u003cp\u003eA lot of riders simply like the shape and feel of a flat-top chain — but until now, that design was locked to SRAM drivetrains only. SUMC set out to give Shimano riders more options, engineering a flat-top chain built specifically to run on Shimano systems too. The result is a chain shape that was previously off-limits to Shimano users, now available to them for the first time.\u003c\/p\u003e\n\u003ch3\u003eShimano vs SRAM: What Actually Differs\u003c\/h3\u003e\n\u003cp\u003eShimano and SRAM both use the same nominal chain pitch at 12-speed, but each brand tunes inner link width, pin length, and outer-plate chamfering differently to match its own derailleur cage geometry, cassette tooth-ramp profile, and quick-link\/master-link design. This S12SL PRO chain is engineered and tuned specifically to Shimano's spec; SUMC also produces a separate SRAM-tuned version of this same tier for SRAM drivetrains. This listing is the Shimano-tuned version.\u003c\/p\u003e\n\u003ch3\u003eSL, EL, or No Suffix: What the Name Tells You\u003c\/h3\u003e\n\u003cp\u003eSUMC's tier naming isn't just marketing — it describes exactly how the chain is machined. This is an \u003cb\u003eSL (Super Light)\u003c\/b\u003e chain: it has hollow pins AND cut-out side plates, the lightest construction SUMC builds, bringing this 12-speed flat-top chain down to just \u003cb\u003e256g\u003c\/b\u003e. Step down a tier to \u003cb\u003eEL\u003c\/b\u003e and the pins become solid while the side plates keep their cut-outs, landing at 268.5g. Chains with no suffix at all use solid pins and solid side plates throughout — the sturdiest and heaviest of the three, at 274.3g. As more material is machined away, weight drops and price rises, so you can pick the tier that matches how much you're willing to spend to save grams.\u003c\/p\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;margin:20px 0;\"\u003e\n\u003ctr style=\"background:#f4f4f4;\"\u003e\n\u003ctd style=\"padding:10px 14px;\"\u003e\u003cb\u003eTier\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px 14px;\"\u003e\u003cb\u003ePins\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px 14px;\"\u003e\u003cb\u003eSide Plates\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px 14px;\"\u003e\u003cb\u003eWeight\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px 14px;\"\u003e\u003cb\u003eSL\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px 14px;\"\u003eHollow\u003c\/td\u003e\n\u003ctd style=\"padding:10px 14px;\"\u003eCut-out\u003c\/td\u003e\n\u003ctd style=\"padding:10px 14px;\"\u003e256g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f4f4f4;\"\u003e\n\u003ctd style=\"padding:10px 14px;\"\u003eEL\u003c\/td\u003e\n\u003ctd style=\"padding:10px 14px;\"\u003eSolid\u003c\/td\u003e\n\u003ctd style=\"padding:10px 14px;\"\u003eCut-out\u003c\/td\u003e\n\u003ctd style=\"padding:10px 14px;\"\u003e268.5g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px 14px;\"\u003eNo suffix\u003c\/td\u003e\n\u003ctd style=\"padding:10px 14px;\"\u003eSolid\u003c\/td\u003e\n\u003ctd style=\"padding:10px 14px;\"\u003eSolid\u003c\/td\u003e\n\u003ctd style=\"padding:10px 14px;\"\u003e274.3g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWhy SUMC?\u003c\/h3\u003e\n\u003cp\u003eSUMC is the only manufacturer in the world producing a Shimano-compatible flat-top chain, a design otherwise exclusive to SRAM's own Flattop standard. Every S12SL PRO chain is hollow-machined to 1-micron precision with pin shafts hardened to 1600+HV and finished with double-nitriding plus a titanium-nitride coating, keeping weight down without sacrificing strength. Patented oil-storing seals lubricate every pin from the inside out for up to 10,000km of riding, and the finish is salt-spray tested for 1000+ hours of corrosion resistance. This Black Red finish is one of 10 colorways in the S12SL PRO line — SUMC's widest color range at this tier.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;margin:20px 0;\"\u003e\n\u003ctr style=\"background:#f4f4f4;\"\u003e\n\u003ctd style=\"padding:10px 14px;\"\u003e\u003cb\u003eSpeed\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px 14px;\"\u003e12-Speed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px 14px;\"\u003e\u003cb\u003eCompatibility\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px 14px;\"\u003eShimano 12-speed drivetrains\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f4f4f4;\"\u003e\n\u003ctd style=\"padding:10px 14px;\"\u003e\u003cb\u003eLink Design\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px 14px;\"\u003eFlat-top (crescent) outer plate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px 14px;\"\u003e\u003cb\u003eChain Pitch\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px 14px;\"\u003e1\/2\" x 11\/128\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f4f4f4;\"\u003e\n\u003ctd style=\"padding:10px 14px;\"\u003e\u003cb\u003eFinish\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px 14px;\"\u003eBlack Red\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px 14px;\"\u003e\u003cb\u003eLinks\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px 14px;\"\u003e126\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp style=\"font-size:12px;color:#9a9a9a;border-top:1px solid #e5e5e5;padding-top:10px;\"\u003eSKU: SMC-S12SL-PRO-BKRD\u003c\/p\u003e","brand":"SUMC","offers":[{"title":"Default Title","offer_id":67571031146800,"sku":"SMC-S12SL-PRO-BKRD","price":9690.0,"currency_code":"INR","in_stock":false}],"url":"https:\/\/www.dogoodco.in\/products\/sumc-s12sl-pro-chain-12-speed-shimano-black-red","provider":"DoGoodCo","version":"1.0","type":"link"}