{"product_id":"box-two-fixed-seat-clamp-31-8mm","title":"Box Two Fixed Seat Clamp 31.8mm","description":"\u003ch1\u003eBOX TWO FIXED SEAT CLAMP 31.8MM\u003c\/h1\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe Box Two Fixed Seat Clamp is a cold-forged aluminum seat clamp designed to secure the seatpost in BMX frames with 31.8mm seat tube diameter. Machined from 6061-T6 aluminum with chromoly hardware, this clamp provides reliable seatpost retention with a clean, durable finish.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCold-forged construction\u003c\/strong\u003e – Cold-forging process increases material density and strength compared to standard machining or casting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6061-T6 aluminum\u003c\/strong\u003e – Heat-treated aluminum alloy provides strength while keeping weight low\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChromoly hardware\u003c\/strong\u003e – Steel bolt and hardware resist stripping and provide secure clamping force\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMachined frame\u003c\/strong\u003e – CNC-machined clamp body ensures consistent fit and finish\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnodized finish\u003c\/strong\u003e – Anodizing protects against corrosion and wear while providing color options\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLaser-etched graphics\u003c\/strong\u003e – Permanent laser-etched branding won't fade or peel over time\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 6061-T6 aluminum, cold-forged\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClamp size:\u003c\/strong\u003e 31.8mm (seat tube outer diameter)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClamp type:\u003c\/strong\u003e Standard round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardware:\u003c\/strong\u003e Chromoly bolt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Anodized with laser-etched graphics\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCompatibility and Ideal Use Cases\u003c\/h2\u003e\n\u003cp\u003eThis seat clamp fits BMX frames with 31.8mm seat tube outer diameter. Measure your frame's seat tube diameter before ordering—seat clamp size must match the frame's seat tube, not the seatpost diameter. The standard round clamp design works with traditional round seat tubes, not integrated or hidden seat clamp systems.\u003c\/p\u003e\n\u003cp\u003eBest suited for riders building or maintaining BMX bikes who need a reliable, lightweight seat clamp. The cold-forged construction and chromoly hardware provide consistent clamping force to prevent seatpost slippage during riding. The anodized finish resists corrosion from weather exposure and sweat. Ideal for park, street, racing, or dirt jumping applications where seat height adjustment is needed. Install with appropriate torque—overtightening can damage the frame's seat tube or crack the clamp, while undertightening allows the seatpost to slip. Check tightness periodically, especially after initial installation or if the seat moves during riding.\u003c\/p\u003e \u003cdiv\u003e\u003cp.\u003e\u003ci\u003e\u003cu\u003e\u003cfont size=\"2\"\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/font\u003e\u003c\/u\u003e\u003c\/i\u003e\u003c\/p.\u003e\u003c\/div\u003e\u003cdiv style=\"\"\u003e\u003ci style=\"font-size: 0.875rem;\"\u003e\u003cu\u003e\u003cfont size=\"3\"\u003e\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\u003c\/font\u003e\u003c\/u\u003e\u003c\/i\u003e\u003c\/div\u003e\u003cdiv style=\"\"\u003e\u003ci style=\"font-size: 0.875rem;\"\u003e\u003cu\u003e\u003cfont size=\"3\"\u003e\u003cb\u003e**Due to unique nature of this item, ALL sales of this product are FINAL. No Refunds or Returns**\u003c\/b\u003e\u003c\/font\u003e\u003c\/u\u003e\u003c\/i\u003e\u003c\/div\u003e","brand":"Box","offers":[{"title":"Black","offer_id":45037934575795,"sku":"BX-SC170F318-BK","price":14.99,"currency_code":"USD","in_stock":true},{"title":"Red","offer_id":45037934641331,"sku":"BX-SC170F318-RD","price":14.99,"currency_code":"USD","in_stock":true},{"title":"Blue","offer_id":45037934608563,"sku":"BX-SC170F318-BL","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/8737\/2979\/files\/box-two-fixed-seat-clamp-318mm_21c80ebb-a52c-4400-9027-e49495ff91e8.jpg?v=1783447132","url":"https:\/\/time2shinebmx.com\/products\/box-two-fixed-seat-clamp-31-8mm","provider":"Time 2 Shine ","version":"1.0","type":"link"}