{"product_id":"rg3-rear-hub-142x12-violet","title":"RG3 REAR HUB 142x12 Violet","description":"\u003cp\u003eThe RG3 is Project321's new hub platform designed specifically for road and gravel riders who demand precision, speed, and durability across any road surface. Building on our proven M-Pulse Technology, RG3 delivers instant, rock-solid engagement, ultra-low drag, and unmatched reliability—whether you are hammering on smooth tarmac or grinding through unpredictable gravel terrain.\u003c\/p\u003e\n\u003cp\u003eProject321’s reputation for toughness and innovation extends to the RG3 hubs, which deliver the same performance DNA to road and gravel riding. RG3 features a stiff axle and bearing platform, refined internal architecture, advanced sealing, and their game-changing 6-Lock rotor system, making it a truly versatile option for today's performance-driven riders.\u003c\/p\u003e\n\u003ch2\u003eEngagement\u003c\/h2\u003e\n\u003cp\u003eAt the heart of the RG3 is Project321’s M-Pulse Technology, a magnetically actuated engagement system that delivers lightning-fast power transfer and exceptionally low drag.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eBorrowing the 72-tooth drive ring and three-step magnetic pawl layout from their G3 mountain bike platform, the RG3 provides 144 Points of Engagement in its standard configuration—equating to just 2.50° of rotation. Riders seeking even faster response can upgrade to 288 POE, for a crisp 1.25° engagement angle.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eUnlike traditional spring actuated drive mechanisms, M-Pulse uses magnets to actuate the pawls—eliminating tiny springs that can be lost or damaged during servicing. This not only reduces drag, but also improves reliability and ease of maintenance.\u003c\/p\u003e\n\u003cp\u003eLearn more about the technology behind RG3.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAxle Compatibility: 12x142 Rear (Thru-Axle Only)\u003c\/li\u003e\n\u003cli\u003eDriver Options: SRAM XDR, Shimano HG-Road, Shimano Microspline\u003c\/li\u003e\n\u003cli\u003eEngagement: 144 POE\/2.50°, expandable to 288 POE\/1.25°\u003c\/li\u003e\n\u003cli\u003eWeight for Pair: Starting at 370g (XDR)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Project 321","offers":[{"title":"Default Title","offer_id":55970514895223,"sku":null,"price":422.5,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0910\/5411\/3143\/files\/RG3_UV_Rear_900x_d0fd4b85-dbd1-4ef5-a37a-753102ab6834.webp?v=1760585947","url":"https:\/\/primovelo.cc\/products\/rg3-rear-hub-142x12-violet","provider":"Primovelo","version":"1.0","type":"link"}