{"product_id":"s-m-mad-dog-990-frame","title":"S\u0026M Mad Dog 990 BMX Frame","description":"\u003cp\u003e\u003cstrong\u003eS\u0026amp;M Mad Dog 990 BMX Frame\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Mad Dog 990 is Chris \"Mad Dog\" Moeller's signature frame with chainstay-mounted 990 brake compatibility, reissued 36 years after the original. Features sub-5 lb weight, 10\" standover height, and traditional 990 brake mounts for riders preferring U-brakes over disc systems. Built with engraved Shield on headtube, engraved '87' on bottom bracket shell, and Mad Dog tag on seat tube. Made in the USA and available in six top tube lengths from 20.5\" to 22\".\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub-5 lb frame weight\u003c\/strong\u003e – At 4.9 lbs, provides competitive weight for trail and track riding without sacrificing strength or brake functionality\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChainstay-mounted 990 brake mounts\u003c\/strong\u003e – Traditional U-brake bosses welded to chainstays for riders who prefer 990-style brakes over disc or V-brake systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10\" standover height\u003c\/strong\u003e – Tall standover provides increased clearance for manual-heavy riding and aggressive body positioning on trails and jumps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSix top tube options\u003c\/strong\u003e – Available in 20.5\", 21\", 21.25\", 21.5\", 21.75\", and 22\" lengths to accommodate wide range of rider heights and preferences\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTraditional 110mm rear spacing with 3\/8\" dropouts\u003c\/strong\u003e – Standard BMX hub compatibility works with conventional wheelsets without specialized hardware\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlotted seat tube for traditional or quick-release clamps\u003c\/strong\u003e – Accepts standard 28.6mm seat clamps or QR designs without integrated clamp hardware\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e74.25° head tube angle and 13.9\" rear end\u003c\/strong\u003e – Geometry balances stability for high-speed trail riding with responsive handling for technical lines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngraved graphics\u003c\/strong\u003e – Permanent Shield logo on headtube, '87' on bottom bracket shell, and Mad Dog tag on seat tube won't wear off like decals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTop tube lengths: 20.5\", 21\", 21.25\", 21.5\", 21.75\", 22\"\u003c\/li\u003e\n\u003cli\u003eRear end (chainstay) length: 13.9\"\u003c\/li\u003e\n\u003cli\u003eHead tube angle: 74.25°\u003c\/li\u003e\n\u003cli\u003eSeat tube angle: 71°\u003c\/li\u003e\n\u003cli\u003eBottom bracket height: 11.6\"\u003c\/li\u003e\n\u003cli\u003eStandover height: 10\"\u003c\/li\u003e\n\u003cli\u003eHead tube: 5\" tall integrated campy-style\u003c\/li\u003e\n\u003cli\u003eBottom bracket: Mid\u003c\/li\u003e\n\u003cli\u003eDropouts: 3\/8\" with 110mm spacing\u003c\/li\u003e\n\u003cli\u003eBrake mounts: Chainstay-mounted 990\u003c\/li\u003e\n\u003cli\u003eSeatpost size: 1\" (25.4mm)\u003c\/li\u003e\n\u003cli\u003eSeat clamp: Slotted for 28.6mm clamp (not integrated)\u003c\/li\u003e\n\u003cli\u003eMaximum sprocket: 39T (with proper chain alignment)\u003c\/li\u003e\n\u003cli\u003eFrame weight: 4.9 lbs\u003c\/li\u003e\n\u003cli\u003eMade in: USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility and Ideal Use Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRequires integrated campy-style headset, mid bottom bracket, 110mm rear hub spacing with 3\/8\" axle, 25.4mm (1\") seatpost, 28.6mm seat clamp, and 990-style U-brakes if running brakes. Maximum 39T sprocket maintains proper chain alignment without interference. Best suited for trail, dirt, and track riders who prefer traditional 990 brake feel and modulation over disc brake systems, or riders building period-correct setups with modern geometry. The 74.25° head angle and 13.9\" rear end provide stable handling for high-speed sections while remaining maneuverable for technical lines. The 20.5\"-22\" top tube range accommodates riders approximately 5'6\" to 6'2\" tall, though individual fit preference varies based on riding style.\u003c\/p\u003e","brand":"S\u0026M Bikes","offers":[{"title":"21\" \/ Gloss Black","offer_id":45037148700851,"sku":"01-MD990-21-GB","price":549.95,"currency_code":"USD","in_stock":false},{"title":"21\" \/ Holmes Yellow","offer_id":45037148733619,"sku":"01-MD990-21-YEL","price":549.95,"currency_code":"USD","in_stock":false},{"title":"21\" \/ OG Green","offer_id":45037148766387,"sku":"01-MD990-21-GN","price":549.95,"currency_code":"USD","in_stock":false},{"title":"21\" \/ Raw Dog","offer_id":45037148799155,"sku":"01-MD990-21-GC","price":549.95,"currency_code":"USD","in_stock":false},{"title":"21.25\" \/ Gloss Black","offer_id":45037148569779,"sku":"01-MD990-21.25-GB","price":549.95,"currency_code":"USD","in_stock":false},{"title":"21.25\" \/ Holmes Yellow","offer_id":45037148602547,"sku":"01-MD990-21.25-YEL","price":549.95,"currency_code":"USD","in_stock":false},{"title":"21.25\" \/ OG Green","offer_id":45037148635315,"sku":"01-MD990-21.25-GN","price":549.95,"currency_code":"USD","in_stock":false},{"title":"21.25\" \/ Raw Dog","offer_id":45037148668083,"sku":"01-MD990-21.25-GC","price":549.95,"currency_code":"USD","in_stock":false},{"title":"21.5\" \/ Gloss Black","offer_id":45037148438707,"sku":"01-MD990-21.5-GB","price":549.95,"currency_code":"USD","in_stock":false},{"title":"21.5\" \/ Holmes Yellow","offer_id":45037148471475,"sku":"01-MD990-21.5-YEL","price":549.95,"currency_code":"USD","in_stock":false},{"title":"21.5\" \/ OG Green","offer_id":45037148504243,"sku":"01-MD990-21.5-GN","price":549.95,"currency_code":"USD","in_stock":false},{"title":"21.5\" \/ Raw Dog","offer_id":45037148537011,"sku":"01-MD990-21.5-GC","price":549.95,"currency_code":"USD","in_stock":false},{"title":"21.75\" \/ Gloss Black","offer_id":45037148373171,"sku":"01-MD990-21.75-GB","price":549.95,"currency_code":"USD","in_stock":false},{"title":"21.75\" \/ Holmes Yellow","offer_id":45037148405939,"sku":"01-MD990-21.75-YEL","price":549.95,"currency_code":"USD","in_stock":false},{"title":"21.75\" \/ OG Green","offer_id":45037148307635,"sku":"01-MD990-21.75-GN","price":549.95,"currency_code":"USD","in_stock":false},{"title":"21.75\" \/ Raw Dog","offer_id":45037148340403,"sku":"01-MD990-21.75-GC","price":549.95,"currency_code":"USD","in_stock":false},{"title":"22\" \/ Gloss Black","offer_id":45037148176563,"sku":"01-MD990-22-GB","price":549.95,"currency_code":"USD","in_stock":true},{"title":"22\" \/ Holmes Yellow","offer_id":45037148209331,"sku":"01-MD990-22-YEL","price":549.95,"currency_code":"USD","in_stock":true},{"title":"22\" \/ OG Green","offer_id":45037148242099,"sku":"01-MD990-22-GN","price":549.95,"currency_code":"USD","in_stock":false},{"title":"22\" \/ Raw Dog","offer_id":45037148274867,"sku":"01-MD990-22-GC","price":549.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/8737\/2979\/files\/MD990-GB-1.jpg?v=1783465289","url":"https:\/\/time2shinebmx.com\/products\/s-m-mad-dog-990-frame","provider":"Time 2 Shine ","version":"1.0","type":"link"}