{"product_id":"ks-d640k","title":"Organic Shimano Zee\/Saint W\/Spring Aero Kool Disc Brake Pads","description":"\u003cp\u003eThe Kool-Stop KS-D640K Aero Kool disc brake pads are engineered for Shimano Zee and Saint hydraulic disc systems, bringing forged aluminium backing with integrated cooling fins and a high-performance organic compound to serious trail and enduro riding across India's demanding terrain — from the rocky descents of Coorg to the steep switchbacks above Ooty.\u003c\/p\u003e\u003ch3\u003eOur Take\u003c\/h3\u003e\u003cp\u003eIndia's trail scene is growing fast, and riders tackling technical descents in places like Lonavala, Khandala, and the Western Ghats need brake pads that manage heat consistently. The KS-D640K's forged aluminium backing with cooling pins actively dissipates heat during long braking zones, while the organic compound offers progressive, confident feel. For riders who push Shimano Zee or Saint systems hard on rough Indian roads, these pads are a smart, reliable upgrade over stock.\u003c\/p\u003e\u003ch3\u003eSizing for Indian Riders\u003c\/h3\u003e\u003cp\u003eBrake pads are a universal fit item — sizing refers to caliper compatibility rather than rider size. These pads are designed for Shimano Zee and Saint hydraulic disc calipers. Note that KS-D640K is NOT compatible with the Saint BR-M810 caliper; check your caliper model number before ordering. Riders across Pune, Hyderabad, and Delhi should verify their exact caliper generation before purchase.\u003c\/p\u003e\u003ch3\u003eCompatibility Notes\u003c\/h3\u003e\u003cp\u003eFits Shimano Zee and Saint hydraulic disc brake calipers (excluding Saint BR-M810). Features a spring retention system for secure pad seating. The organic compound pairs well with clean or lightly contaminated rotors. Clean rotors with isopropyl alcohol before installation and bed in pads with 20–30 light stops before full hard braking.\u003c\/p\u003e\u003ch3\u003ePairs Well With\u003c\/h3\u003e\u003cp\u003eComplete your braking system with matching Shimano Zee or Saint brake levers and calipers, quality disc rotors sized for your wheel, rotor lockring tools for installation, and a durable mountain bike chain for drivetrain confidence on the same demanding trails.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/collections\/koolstop\"\u003eExplore the full KOOLSTOP collection at Cobbled Climbs\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eWhy buy from Cobbled Climbs\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e100% genuine — authorised KOOLSTOP retailer in India\u003c\/li\u003e\n\u003cli\u003eFree delivery on orders above Rs. 2,500\u003c\/li\u003e\n\u003cli\u003eCash on delivery available nationwide\u003c\/li\u003e\n\u003cli\u003e7-day easy returns\u003c\/li\u003e\n\u003cli\u003eShipped from Mumbai\u003c\/li\u003e\n\u003cli\u003eExpert advice — our team rides this gear\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cstyle\u003e.cc-faq{margin:32px 0 24px}.cc-faq__item{border-top:1px solid #e5e5e5;margin:0}.cc-faq__item:last-of-type{border-bottom:1px solid #e5e5e5}.cc-faq__q{cursor:pointer;list-style:none;padding:24px 0;display:flex;justify-content:space-between;align-items:center;gap:24px;outline:none}.cc-faq__q::-webkit-details-marker{display:none}.cc-faq__q:focus-visible{outline:2px solid #000;outline-offset:-2px}.cc-faq__q::after{content:\"\";width:14px;height:14px;flex-shrink:0;background-image:url('data:image\/svg+xml;utf8,\u003csvg viewBox=\\\"0 0 14 14\\\" xmlns=\\\"http:\/\/www.w3.org\/2000\/svg\\\"\u003e\u003cpath d=\\\"M2 5l5 5 5-5\\\" stroke=\\\"%23000\\\" stroke-width=\\\"1.5\\\" fill=\\\"none\\\"\/\u003e\u003c\/svg\u003e');background-repeat:no-repeat;background-position:center;transition:transform .2s ease}.cc-faq__item[open] .cc-faq__q::after{transform:rotate(180deg)}.cc-faq__a{padding:0 0 28px;margin:0}\u003c\/style\u003e\u003csection class=\"cc-faq\" aria-label=\"Frequently Asked Questions\"\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdetails class=\"cc-faq__item\"\u003e\u003csummary class=\"cc-faq__q\"\u003eWhat is the Kool-Stop KS-D640K best used for?\u003c\/summary\u003e\u003cp class=\"cc-faq__a\"\u003eThe KS-D640K is best suited for trail, enduro, and aggressive mountain biking where consistent heat management matters. The forged aluminium backing with cooling pins handles repeated hard stops on long descents — ideal for Indian riders tackling the Western Ghats, Coorg, or Ooty's steep switchbacks on Shimano Zee or Saint-equipped bikes.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails class=\"cc-faq__item\"\u003e\u003csummary class=\"cc-faq__q\"\u003eHow do I know if the KS-D640K fits my brake caliper?\u003c\/summary\u003e\u003cp class=\"cc-faq__a\"\u003eThese pads are designed for Shimano Zee and Saint hydraulic disc brake calipers. Critically, they are NOT compatible with the Shimano Saint BR-M810 caliper. Check the model code printed on your caliper body — if you are unsure, reach out to the Cobbled Climbs team before ordering to confirm compatibility and avoid a return.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails class=\"cc-faq__item\"\u003e\u003csummary class=\"cc-faq__q\"\u003eWill the KS-D640K perform well in India's monsoon and heat?\u003c\/summary\u003e\u003cp class=\"cc-faq__a\"\u003eThe organic compound and aluminium cooling pins handle India's heat well, maintaining consistent feel even during prolonged braking in 35°C+ conditions. In monsoon, organic pads can be slightly more affected by water than sintered alternatives, so allow a brief bed-in after heavy rain. Clean rotors regularly during the wet season for best performance.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails class=\"cc-faq__item\"\u003e\u003csummary class=\"cc-faq__q\"\u003eHow does the KS-D640K compare to standard Shimano OEM pads?\u003c\/summary\u003e\u003cp class=\"cc-faq__a\"\u003eCompared to standard Shimano OEM pads, the KS-D640K offers a forged aluminium backing with active cooling fins — a meaningful advantage on long descents where heat build-up causes brake fade. The organic compound provides a similar progressive feel to Shimano's own organic option but with improved heat dissipation, making it a practical upgrade for demanding Indian trail riding.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails class=\"cc-faq__item\"\u003e\u003csummary class=\"cc-faq__q\"\u003eIs the Kool-Stop KS-D640K worth the price in India, and what warranty applies?\u003c\/summary\u003e\u003cp class=\"cc-faq__a\"\u003eKool-Stop pads are selected for Indian conditions based on their proven compound consistency and broad compatibility. For brake pads, warranty typically covers manufacturing defects rather than wear, which is considered a consumable. Given the improved cooling design over stock pads, these represent solid value for riders who push Shimano Zee or Saint systems hard on technical terrain across India.\u003c\/p\u003e\u003c\/details\u003e\u003c\/section\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the Kool-Stop KS-D640K best used for?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The KS-D640K is best suited for trail, enduro, and aggressive mountain biking where consistent heat management matters. The forged aluminium backing with cooling pins handles repeated hard stops on long descents — ideal for Indian riders tackling the Western Ghats, Coorg, or Ooty's steep switchbacks on Shimano Zee or Saint-equipped bikes.\"}}, {\"@type\": \"Question\", \"name\": \"How do I know if the KS-D640K fits my brake caliper?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"These pads are designed for Shimano Zee and Saint hydraulic disc brake calipers. Critically, they are NOT compatible with the Shimano Saint BR-M810 caliper. 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Clean rotors regularly during the wet season for best performance.\"}}, {\"@type\": \"Question\", \"name\": \"How does the KS-D640K compare to standard Shimano OEM pads?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Compared to standard Shimano OEM pads, the KS-D640K offers a forged aluminium backing with active cooling fins — a meaningful advantage on long descents where heat build-up causes brake fade. The organic compound provides a similar progressive feel to Shimano's own organic option but with improved heat dissipation, making it a practical upgrade for demanding Indian trail riding.\"}}, {\"@type\": \"Question\", \"name\": \"Is the Kool-Stop KS-D640K worth the price in India, and what warranty applies?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Kool-Stop pads are selected for Indian conditions based on their proven compound consistency and broad compatibility. For brake pads, warranty typically covers manufacturing defects rather than wear, which is considered a consumable. Given the improved cooling design over stock pads, these represent solid value for riders who push Shimano Zee or Saint systems hard on technical terrain across India.\"}}]}\u003c\/script\u003e","brand":"KOOLSTOP","offers":[{"title":"Default Title","offer_id":46164541276333,"sku":"KS-D640K","price":2500.0,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/9958\/5953\/files\/KS-D640K.png?v=1781864659","url":"https:\/\/www.cobbledclimbs.com\/products\/ks-d640k","provider":"Cobbled Climbs","version":"1.0","type":"link"}