{"product_id":"rennen-infinity-chainring-al-bolts-4pcs","title":"Rennen Infinity Chainring Al Bolts 4pcs","description":"\u003cp\u003eRennen Infinity Bolts are the latest product developed out of the Rennen headquarters. Rennen took one of the simplest components on a BMX bicycle \"The Chainring Bolt\" and Rennen made it better.\u003c\/p\u003e\n\u003cp\u003eRennen has done it again with the Infinity Bolt. A simple but very effective shoulder just under the head of the bolt serves to distribute the load and make this the strongest 7075 Aluminum Chainring bolt on the market.\u003c\/p\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-xs-6\"\u003e\n\u003cstrong\u003eChain Ring Bolt Lenghts\u003c\/strong\u003e\u003cbr\u003e Regular: 6.2mm\u003cbr\u003e XL:9mm\u003c\/div\u003e\n\u003cdiv class=\"col-xs-6\"\u003e\n\u003cstrong\u003eChain Ring Nut Lenghts\u003c\/strong\u003e\u003cbr\u003e Regular: 6.2mm\u003cbr\u003e XL:9mm\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ccenter\u003e\u003cimg alt=\"\" class=\"img-responsive\" height=\"493\" src=\"https:\/\/www.brgstore.com\/img\/cms\/RENNEN\/montage.jpg\" width=\"967\"\u003e\u003c\/center\u003e\n\u003cp\u003eWhile all other bolts on the market use a 5mm internal hex we chose 4mm to provide more material and increasing their strength further by 8.5%\u003c\/p\u003e\n\u003cp\u003eAt Rennen we like improving things that are not obvious and we believe we have achieved that with the Infinity Chainring Bolt.\u003c\/p\u003e\n\u003cp\u003eRennen are so confident in this design we are offering a lifetime warranty against breakage. That's right break a bolt and get a new one.\u003c\/p\u003e\n\u003cp\u003eFor something as simple as a chainring bolt we ran this design through 97 CAD iterations, 22 CNC G-Code variations and numerous FEA simulations.\u003c\/p\u003e\n\u003cp\u003eWe purchase USA made 7075-T6 and produce these on a state of the art multiaxis CNC lathe in house. We do things this way because we have full control over our designs and production, and the alternative of ordering parts out of a catalog is unoriginal and boring.\u003c\/p\u003e\n\u003cp\u003eRennen stands by their designs and products, the quality shows.\u003c\/p\u003e\n\u003cp\u003eChainring Bolts use a 4mm\/8mm allen wrenches for assembly.\u003c\/p\u003e\n\u003cp\u003eRegular length has been optimized to work with most gear crank combinations.\u003c\/p\u003e\n\u003cp\u003eXL is specifically designed for thick crank spiders like Answer Accelerator cranks.\u003c\/p\u003e\n\t\t\t\t\t\t \u003cbr\u003e\u003cbr\u003e\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-xs-12 col-sm-6\"\u003e\n\u003cp\u003eWe use Finite Element Analysis (FEA) to virtually test the design and rapidly iterate through concepts.\u003cbr\u003e In this first Image we are showing in an exaggerated view what happens when a load is applied to the spider and transmitted through the gear. This is a design with no shoulder. Here you can see concentrated stress.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-sm-6\"\u003e\u003ccenter\u003e\u003cimg alt=\"\" class=\"img-responsive\" height=\"275\" src=\"https:\/\/www.brgstore.com\/img\/cms\/RENNEN\/no%20shoulder.gif\" width=\"600\"\u003e\u003c\/center\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-xs-12 col-sm-6\"\u003e\n\u003cp\u003eOur second image is demonstrating the effects of the shoulder. Notice how there is more distribution of stress and the regions of high stress are not as pronounced.\u003cbr\u003e We look to improve designs that have been in existence for decades.\u003cbr\u003e We have improved the Chainring bolt and we at Rennen hope you appreciate the effort.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-sm-6\"\u003e\u003ccenter\u003e\u003cimg alt=\"\" class=\"img-responsive\" height=\"275\" src=\"https:\/\/www.brgstore.com\/img\/cms\/RENNEN\/Shoulder.gif\" width=\"600\"\u003e\u003c\/center\u003e\u003c\/div\u003e\n\u003c\/div\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":"RENNEN","offers":[{"title":"Black \/ Regular 6.2mm \/ Regular 6.2mm","offer_id":45275508605107,"sku":"RNIN4PCSBKREGREG","price":21.9,"currency_code":"USD","in_stock":true},{"title":"Blue \/ Regular 6.2mm \/ Regular 6.2mm","offer_id":45273456672947,"sku":"RNIN4PCSBLREGREG","price":21.9,"currency_code":"USD","in_stock":true},{"title":"Red \/ Regular 6.2mm \/ Regular 6.2mm","offer_id":45273456705715,"sku":"RNIN4PCSRDREGREG","price":21.9,"currency_code":"USD","in_stock":true},{"title":"Gold \/ Regular 6.2mm \/ Regular 6.2mm","offer_id":45273456738483,"sku":"RNIN4PCSGDREGREG","price":21.9,"currency_code":"USD","in_stock":true},{"title":"Raw \/ Regular 6.2mm \/ Regular 6.2mm","offer_id":45246454399155,"sku":"RNIN4PCSRAREGREG","price":21.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/8737\/2979\/files\/rennen-infinity-chainring-al-bolts-4pcs_c765e915-8670-4f34-b8f5-aa9c0c77801b.jpg?v=1783445236","url":"https:\/\/time2shinebmx.com\/products\/rennen-infinity-chainring-al-bolts-4pcs","provider":"Time 2 Shine ","version":"1.0","type":"link"}