{"product_id":"btbk1557","title":"Full Speed Ahead RPM ISIS Bottom Bracket 68x113mm | Forged SCM4130 Chromo Spindle, Sealed Bearings, Water \u0026 Dirt Protection, Cold Forged Aluminum Cups","description":"\u003cdiv id=\"seqbpdescription-1\"\u003e\u003cp\u003eUpgrade your bike's performance with the Full Speed Ahead RPM Bottom Bracket 9915ST - the ultimate choice for durable, reliable, and high-efficiency pedaling. Designed for serious cyclists and mountain biking enthusiasts, this precision-engineered bottom bracket offers exceptional strength, seamless operation, and enhanced longevity.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-2\"\u003e\u003cp\u003eMaterials \u0026amp; Construction:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-3\"\u003e\u003cp\u003eCrafted from high-quality forged hollow SCM4130 chromoly steel spindles, the RPM 9915ST ensures maximum durability and lightweight performance. The cold-forged aluminum cups are anodized for corrosion resistance, while the zinc-plated sleeve provides added protection against the elements. Weighing only 325 grams, this bottom bracket combines lightweight design with rugged construction for demanding terrains.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-4\"\u003e\u003cp\u003ePerformance \u0026amp; Engineering:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-5\"\u003e\u003cp\u003eEquipped with industrial-grade 6002KRS sealed cartridge bearings featuring oversized 3\/16 balls, the RPM Bottom Bracket delivers smooth, consistent power transfer and excellent resistance to dirt and water ingress. The oversized bearings reduce friction and extend service life, providing a more efficient pedaling experience on every ride. The 68mm shell width and 113mm spindle length (other sizes available) ensure compatibility with a wide range of mountain, hybrid, and touring bikes.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-6\"\u003e\u003cp\u003eComponents \u0026amp; Technology:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-7\"\u003e\u003cp\u003eThe ISIS Drive interface with 68x113mm dimensions ensures secure, precise coupling with compatible cranks. M15 bolts secure the bottom bracket firmly in place, while the design accommodates M12 bolts for additional versatility. Double snap seals provide an extra layer of protection against dirt, mud, and water, maintaining optimal bearing performance in harsh environments.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-8\"\u003e\u003cp\u003eStyle \u0026amp; Use Case:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-9\"\u003e\u003cp\u003eWith its sleek anodized cups and robust design, the RPM Bottom Bracket combines functionality with a clean, professional aesthetic. Ideal for mountain biking, cyclocross, commuting, and off-road adventures, this bottom bracket is engineered to handle tough conditions without sacrificing performance or dependability.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-10\"\u003e\u003cp\u003eInnovative \u0026amp; Differentiating Features:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-11\"\u003e\u003cp\u003e- Forged hollow chromoly spindle for strength and reduced weight\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-12\"\u003e\u003cp\u003e- Double snap seals for superior water and dirt resistance\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-13\"\u003e\u003cp\u003e- Anodized aluminum cups and zinc-plated sleeve for corrosion resistance\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-14\"\u003e\u003cp\u003e- Designed for easy installation with M15 bolts and versatile sizing options\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-15\"\u003e\u003cp\u003eOptimize your bike's drivetrain with the Full Speed Ahead RPM Bottom Bracket 9915ST and experience smooth, efficient pedaling in any environment. Whether upgrading your current setup or building a new bike, this bottom bracket delivers the reliability and performance you demand from your cycling gear.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-16\"\u003e\u003cp\u003eKeywords: bicycle bottom bracket, RPM bottom bracket, forged chromoly spindle, sealed cartridge bearings, water-resistant bottom bracket, mountain bike bottom bracket, bike maintenance, durable bottom bracket, cycling components\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpfeatures\"\u003e\u003cul\u003e\n\u003cli\u003eHigh-performance ISIS Drive bottom bracket featuring a forged hollow SCM4130 chromoly spindle for enhanced strength and durability, ideal for aggressive riding styles and high-torque applications.\u003c\/li\u003e\n\u003cli\u003eConstructed with sealed industrial-grade 6002KRS cartridge bearings and oversized 3\/16 balls, providing superior smoothness, reliability, and resistance to dirt and water ingress in demanding riding conditions.\u003c\/li\u003e\n\u003cli\u003eDesigned with precision-machined 68mm x 113mm cold-forged aluminum cups and zinc-plated sleeves, ensuring excellent corrosion resistance and a lightweight, robust construction for long-lasting performance.\u003c\/li\u003e\n\u003cli\u003eCompatible with multiple spindle lengths (68mm, 118mm, 128mm) and incorporating M15 and M12 bolt options, offering versatile installation options for a wide range of bike frames and drivetrain setups.\u003c\/li\u003e\n\u003cli\u003eIdeal for mountain biking, trail riding, and aggressive cycling, the Full Speed Ahead RPM Bottom Bracket combines innovative engineering, durable materials, and functional design to optimize power transfer and extend component lifespan.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e","brand":"Full Speed Ahead","offers":[{"title":"Default Title","offer_id":43065898532931,"sku":"BTBK1557","price":93.19,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1608\/6187\/files\/media_f7fa8d8a-18c4-40d6-b47a-cc43a7fff84f.jpg?v=1774416829","url":"https:\/\/365cycles.com\/products\/btbk1557","provider":"365 Cycles","version":"1.0","type":"link"}