{"product_id":"srm-pm9-8-bolt-spider","title":"SRM PM9 8-Bolt Spider","description":"\u003cdiv\u003e\n  \u003cp\u003eThe \u003cstrong\u003eSRM PM9 8-Bolt Spider\u003c\/strong\u003e is a power meter spider built around the universal 8-bolt interface, giving riders a way to add SRM's power measurement to a crankset they already own rather than buying a full crank replacement. It bolts directly onto 8-bolt crank arms from SRAM, Cane Creek, and Moots, and pairs with 110\/110mm 4-bolt chainrings from groupsets including Shimano Dura-Ace, Ultegra, 105, and GRX, as well as SRAM Rival, Force, and RED eTap AXS. Chainrings are sold separately, so this spider is the power meter itself, not a complete crankset.\u003c\/p\u003e\n\n  \u003cp\u003eInside, it runs SRM's PM9 platform, the company's current generation of power meter electronics. SRM claims accuracy within ±1%, and the PM9 architecture adds magnetless cadence sensing along with cycling dynamics data — combined pedal smoothness and left\/right power balance — for riders who want more than a single wattage number. Connectivity covers both ANT+ and Bluetooth, so the spider pairs with head units, smart trainers, and training apps without a bridge or dongle. A rechargeable battery is rated for 100 hours of runtime between charges.\u003c\/p\u003e\n\n  \u003cp\u003eAt 112 grams, the spider adds minimal weight to whatever crankset it's mounted on, and SRM backs it with a 2-year warranty. It ships in White, Red, or Yellow to match a range of build colors. At $1,299.00, the PM9 8-Bolt Spider is positioned as an upgrade path for riders already running compatible SRAM, Cane Creek, or Moots crank arms who want SRM's power data without switching crankset brands.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"SRM","offers":[{"title":"White","offer_id":46243849699372,"sku":"POM-8BO-SPI-ONL-PM9-WHITE","price":1299.0,"currency_code":"USD","in_stock":true},{"title":"Red","offer_id":46243849732140,"sku":"POM-8BO-SPI-ONL-PM9-RED","price":1299.0,"currency_code":"USD","in_stock":true},{"title":"Yellow","offer_id":46243849764908,"sku":"POM-8BO-SPI-ONL-PM9-YELLOW","price":1299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/7684\/9196\/files\/SRM-PM9-8-BOLT-SPIDER-WHITE_c352bbee-fe86-4338-bbde-62fa42a3861a.jpg?v=1790201686","url":"https:\/\/ricycles.com\/es\/products\/srm-pm9-8-bolt-spider","provider":"RA Cycles","version":"1.0","type":"link"}