{"product_id":"gr7-adjustable-length-crankset-gravel-road","title":"GR7 Adjustable Length Crankset - Gravel\/Road","description":"\u003cp\u003eWe designed the GR7 Adjustable Length Crankset around one simple idea. One crankset that optimizes fit and pedaling efficiency for every rider, from XS to XL. It is built to fit both gravel and road frames, and designed for long days in the saddle where comfort, cadence, and efficiency matter more with every kilometer.\u003c\/p\u003e\n\u003cp\u003eMost bikes come spec’d with cranks that are far too long for the average rider. Even a 5 mm difference in length can lead to wasted energy, reduced cadence efficiency, and unnecessary joint strain over time. The GR7 allows you to fine-tune your crank length to your specific body and riding style. It is a difference you will feel within the first few pedal strokes, whether you are rolling out from home, settling into steady tempo on pavement, or finding rhythm on endless back roads.\u003c\/p\u003e\n\u003cp\u003eThe GR7 uses an adjustable dovetail system paired with Grade 12.9 fasteners, giving you a range from 140 mm to 175 mm in 5 mm increments. For long-term durability, we chose a 7075 aluminum construction finished in a Type 3 hard anodized coating. At 884 g, the GR7 prioritizes strength, reliability, and precision adjustment over chasing the lowest possible weight. The biomechanical advantage of a perfect crank length delivers smoother cadence, improved comfort, and more usable power than a fixed-length lightweight crankset ever could.\u003c\/p\u003e\n\u003cp\u003eWe believe optimizing crank length is as essential as setting saddle height. Once you find your sweet spot with the GR7, there is no going back. You will hold speed more easily, climb with steadier power, and finish long rides feeling stronger than expected. Fine-tune your ride with the GR7 Adjustable Length Crankset, and you will wonder why you rode cranks that were too long for so long.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eChainring sold separately\u003c\/em\u003e.\u003c\/p\u003e\n\u003cp data-path-to-node=\"12\"\u003e\u003cstrong\u003eTech Specs:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIntended Use:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGravel and Road Bikes\u003cbr\u003e\u003cstrong\u003eBottom Bracket Compatibility:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e24mm, Hollowtech\u003cbr\u003e\u003cstrong\u003eChainring Interface:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e3-bolt direct mount\u003cbr\u003e\u003cstrong\u003eChainring Quantity:\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003ex1 by default, x2 compatible with SRAM Spider\u003cbr\u003e\u003cstrong\u003eRecommended Chainring Offset:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e6 mm offset for x1 set ups\u003cbr\u003e\u003cstrong\u003eCrank Length:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e140, 145, 150, 155, 160, 165, 170, and 175mm length in a single crankset\u003cbr\u003e\u003cstrong\u003eQ-Factor:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e170mm\u003cbr\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e7075 Aluminum construction with 24mm chromoly steel axle\u003cbr\u003e\u003cstrong\u003ePreload System:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAluminum Pre-Load Collar\u003cbr\u003e\u003cstrong\u003eFrame Compatibility:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAxle length designed for standard boost frames\u003cbr\u003e\u003cstrong\u003eHardware:\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eGrade 12.9 Fasteners\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e884g without chainring\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch2\u003eWhat crank lengths are available on the GR7 Adjustable Crankset?\u003c\/h2\u003e\n\u003cp\u003eThe GR7 allows riders to adjust crank length from 140mm to 175mm in 5mm increments, helping riders find their ideal fit.\u003c\/p\u003e\n\u003ch2\u003eWho is the GR7 designed for?\u003c\/h2\u003e\n\u003cp\u003eThe GR7 is designed for gravel riders, road cyclists, endurance riders, bikepackers, and cyclists seeking improved comfort and efficiency.\u003c\/p\u003e\n\u003ch2\u003eCan crank length affect cycling comfort?\u003c\/h2\u003e\n\u003cp\u003eYes. Proper crank length can improve pedaling mechanics, reduce strain on the hips and knees, and enhance long-distance comfort.\u003c\/p\u003e\n\u003ch2\u003eWhy choose an adjustable crankset for gravel riding?\u003c\/h2\u003e\n\u003cp\u003eAn adjustable crankset allows riders to experiment with different crank lengths without purchasing multiple cranksets, making bike fit optimization easier.\u003c\/p\u003e\n\u003ch2\u003eIs the GR7 suitable for endurance rides?\u003c\/h2\u003e\n\u003cp\u003eAbsolutely. The GR7 is engineered for long-distance riding where comfort, cadence efficiency, and rider fit play a major role in overall performance.\u003c\/p\u003e\n\u003ch2\u003eWhat material is used in the GR7 crankset?\u003c\/h2\u003e\n\u003cp\u003eThe GR7 is precision machined from high-strength 7075 aluminum and built for durability, reliability, and long-term performance.\u003cbr\u003e\u003c\/p\u003e","brand":"R Theory Cycleworks","offers":[{"title":"Default Title","offer_id":52860430287032,"sku":null,"price":420.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0877\/2675\/1928\/files\/RTHEORYCYCLEWORKSADJUSTABLELENGTHCRANKSETGR7-1.jpg?v=1771470458","url":"https:\/\/www.rtheorycycleworks.com\/products\/gr7-adjustable-length-crankset-gravel-road","provider":"R Theory Cycleworks","version":"1.0","type":"link"}