{"product_id":"na107-purple-spring-3400-rpm-star-and-2400-rpm-minicup-stall","title":"NA107 Purple Spring 3400 RPM Star and 2400 RPM MiniCup Stall","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cem\u003ePurple Precision:\u003c\/em\u003e 3400 RPM Star and 2400 RPM MiniCup stalls for rev-happy tuning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Response:\u003c\/strong\u003e Builds explosive power for overtakes.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe NA107 Purple Spring embodies sophisticated stall management in Nor-Am Clutches, favoring drivers who dance on the RPM needle. Its higher threshold lets engines spool fully before clamping, yielding ferocious acceleration that redefines race dynamics. Purple's regal shade aids in quick part sorting, bolstering efficient workflows.\u003c\/p\u003e\u003cp\u003eIn high-stakes bouts, this spring's consistency shines, warding off fade for lap-after-lap fury. It suits modified mills, unlocking potentials in ways stock options can't. SKU: NA107.\u003c\/p\u003e\u003cp\u003eElevate your edge.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the primary function of the NA107 Purple Spring in a racing clutch?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The NA107 Purple Spring acts as a tensioner that determines your clutch engagement RPM. By setting the stall at 3400 RPM for Star clutches or 2400 RPM for MiniCup clutches, it allows the engine to reach a higher power band before the clutch fully engages, resulting in more explosive acceleration off the corners.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How do I know if the Purple Spring is the right choice for my kart?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e This spring is ideal for drivers looking for \"rev-happy\" tuning. If you feel your kart is sluggish coming out of tight turns, the higher stall speed of the Purple spring helps keep your engine in its peak power range, provided your engine setup supports that engagement threshold.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the NA107 spring compatible with both Star and MiniCup clutches?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, this spring is versatile. It provides a 3400 RPM stall when used in Nor-Am Star clutches and a 2400 RPM stall when used in MiniCup clutch systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I mix and match different colored springs in my clutch?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e It is highly recommended to use a consistent set of springs across the clutch assembly to ensure even engagement and prevent premature wear or vibration. Always replace springs as a complete set to maintain balanced performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How often should I replace my clutch springs?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Clutch springs are subject to heat cycles and mechanical fatigue. If you notice your engagement RPM dropping or inconsistent acceleration, it is time to inspect your springs for signs of fatigue or \"fade.\" Replacing them regularly ensures your kart maintains its competitive edge.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products From Vendor\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/na102-brown-spring-na102\"\u003eNA102 Brown Spring Low Stall for Mini Cup and Star Clutches\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/na108-green-spring-na108\"\u003eNor-Am NA108 Green Clutch Spring - 3700 RPM Star \/ 2550 RPM MiniCup Stall - Racing Kart Class\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/na105-white-spring-na105\"\u003eNA105 White Spring 2800 RPM Star and 1850 RPM MiniCup Stall\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/na110-plain-spring-na110\"\u003ePlain Spring for Nor-Am STAR and MiniCup Clutches\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/na039-shoe-for-minicup-clutch-sold-each-three-reqired-na039\"\u003eMiniCup Clutch Shoe Individual Replacement for Nor-Am Systems\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SwiftKarting","offers":[{"title":"Default Title","offer_id":52378972487999,"sku":"NA107","price":12.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0968\/6843\/4239\/files\/nor-amstarclutches-na107-purple-spring-na107.jpg?v=1773221911","url":"https:\/\/metro-merch-3.myshopify.com\/products\/na107-purple-spring-3400-rpm-star-and-2400-rpm-minicup-stall","provider":"Metro Merch","version":"1.0","type":"link"}