{"product_id":"100-mm-internal-expanding-rear-brake-drum-assembly","title":"100 mm Internal Expanding Rear Brake Drum Assembly","description":"We call this our \"100 mm Internal Expanding Rear Brake Drum Assembly\" Here is a curious little item, an \u003cem\u003einternal expansion\u003c\/em\u003e drum brake assembly. Unlike some small scooter brake units that use bands that \u003cem\u003econtract\u003c\/em\u003e or \u003cem\u003eclamp-down\u003c\/em\u003e on a spinning drum to provide the braking pressure, this brake unit's shoes \u003cem\u003eexpand outwards\u003c\/em\u003e to grip the inside of the drum. This is essentially the same system used on an automotive drum brake, but on a much smaller scale.\u003cbr\u003e\n\u003cbr\u003e\nExternal labeling states this is a \"Servo Brake\" from Xun Lin Brake. This is an outside view the 100 mm unit. There is an almost identical 90 mm version in stock as well.","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44337678188706,"sku":"U63-7028","price":9.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/intexprebra-100.jpg?v=1774607226","url":"https:\/\/monstorscooterparts.shop\/products\/100-mm-internal-expanding-rear-brake-drum-assembly","provider":"Monster Scooter Parts","version":"1.0","type":"link"}