{"product_id":"double-sided-spoke-wrench-4-0mm-x-4-4mm","title":"Double Sided Spoke Wrench 4.0mm x 4.4mm","description":"\u003cp\u003eThe 4.0 mm and 4.4 mm nipple sizes show up most often on MTB wheelsets, heavier-rim road builds, and tandems; wheels where the spoke load is high enough that the manufacturer specs a larger nipple body. The double-sided 4.0 x 4.4 mm wrench covers both sizes from a single combination-wrench-style tool body.\u003c\/p\u003e\n\u003cp\u003eA workshop servicing MTB or tandem wheels often runs into both sizes within the same build session: a wheel with 4.0 mm nipples on one bike, 4.4 mm on the next, and a single tool that covers both means fewer wrench-swaps mid-session. The four-flat engagement on both sides protects the nipple flats from rounding; the combination-wrench form factor is the workshop-economy choice.\u003c\/p\u003e\n\u003cp\u003eWe carry three configurations of double-sided wrench: this 4.0\/4.4 mm variant for MTB and heavier road builds, the \u003ca href=\"\/products\/spoke-wrench-3-3x3-45-16332p-us\"\u003e3.3\/3.45 mm 1633\/2P\u003c\/a\u003e for the most common road and gravel nipple sizes, and the \u003ca href=\"\/products\/double-sided-spoke-wrench-1633-2p-copy-copy\"\u003e4.3\/4.4 mm variant\u003c\/a\u003e for builds at the upper end of the standard MTB range. Pair the 4.0\/4.4 mm with the 3.3\/3.45 mm to cover most of the modern wheel range from two tools.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eNipple sizes: 4.0 mm (one side), 4.4 mm (other side).\u003c\/li\u003e\n\u003cli\u003eEngagement: four-flat on both sides.\u003c\/li\u003e\n\u003cli\u003eWheels: MTB wheelsets, tandem wheels, heavier-rim road and gravel builds.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eTwo nipple sizes on a single combination-wrench-style body.\u003c\/li\u003e\n\u003cli\u003ePlastic-dipped handle for grip.\u003c\/li\u003e\n\u003cli\u003eCompanion sizes: \u003ca href=\"\/products\/spoke-wrench-3-3x3-45-16332p-us\"\u003e3.3 x 3.45 mm\u003c\/a\u003e and \u003ca href=\"\/products\/double-sided-spoke-wrench-1633-2p-copy-copy\"\u003e4.3 x 4.4 mm\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eBuilt in Zreče, Slovenia\u003c\/h2\u003e\n\u003cp\u003eUnior has been forging hand tools in Zreče since 1919, and sponsors professional road and mountain-bike race teams. The double-sided wrench line is the workshop-economy approach: smart configurations of multiple sizes on a single body, where the alternative would be a parts drawer of dedicated single-size tools. Smart workshop choices like this are part of why the Unior wheelbuilding line shows up in event-mechanic kits where space and weight matter.\u003c\/p\u003e\n\u003ch2\u003ePro tip from our mechanics\u003c\/h2\u003e\n\u003cp\u003eColor-mark or tape one end of the wrench at the start of a build so you can grab the correct size mid-rotation without thinking. The two sizes are close enough (4.0 and 4.4) that a quick glance won't reliably tell them apart; a colored tape band on the 4.0 end removes the guesswork. The full wheel-truing workflow is in \u003ca href=\"\/blogs\/tech-tips\/how-to-true-a-bike-wheel\"\u003eHow to true a bike wheel →\u003c\/a\u003e\u003c\/p\u003e","brand":"Unior","offers":[{"title":"4.0mm x 4.4mm","offer_id":44140708069420,"sku":"624949","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0012\/5786\/5260\/products\/1633_2p-us.jpg?v=1642724067","url":"https:\/\/uniorusa.com\/products\/double-sided-spoke-wrench-4-0mm-x-4-4mm","provider":"Unior USA","version":"1.0","type":"link"}