{"product_id":"token-tk878-bsa-threaded-external-bottom-bracket-for-shimano","title":"TOKEN TK878 BSA Threaded External Bottom Bracket for Shimano","description":"\u003cdiv\u003e\n\u003cp\u003eThe \u003cstrong\u003eTOKEN TK878 BSA Threaded External Bottom Bracket for Shimano\u003c\/strong\u003e is a premium‑quality drivetrain component engineered for riders who demand durability, smooth bearing performance, and long service life. Designed for \u003cstrong\u003eBSA threaded frames\u003c\/strong\u003e and \u003cstrong\u003eShimano 24 mm cranksets\u003c\/strong\u003e, this bottom bracket is widely stocked by \u003cstrong\u003eBrisbane bike shops\u003c\/strong\u003e and installed during professional \u003cstrong\u003ebicycle service and drivetrain upgrades\u003c\/strong\u003e across Queensland.\u003c\/p\u003e\n\u003cp\u003eBuilt to perform in demanding riding conditions, the TK878 is equally at home on road bikes, endurance builds, gravel bikes, and mountain bikes serviced by professional cycling mechanics.\u003c\/p\u003e\n\u003ch3\u003eExternal Bearing Design for Strength and Longevity\u003c\/h3\u003e\n\u003cp\u003eThe TOKEN TK878 features an \u003cstrong\u003eexternal bottom bracket design\u003c\/strong\u003e, allowing the use of oversized bearings for increased load capacity and durability. The bearings are positioned to rest directly on the crank axle, ensuring straight load transfer through the system. This design reduces bearing stress, improves efficiency, and significantly extends bearing life compared to traditional designs.\u003c\/p\u003e\n\u003cp\u003eThe result is smoother pedalling, reduced friction, and consistent drivetrain performance — even under high torque and long‑distance riding.\u003c\/p\u003e\n\u003ch3\u003ePrecision Machining for Smooth Performance\u003c\/h3\u003e\n\u003cp\u003eManufactured with tight tolerances, the TK878 bottom bracket delivers excellent alignment between frame, bearings, and crankset. This precision reduces drag and vibration, supporting efficient power transfer and reliable performance for riders training and racing throughout Brisbane and South East Queensland.\u003c\/p\u003e\n\u003cp\u003eThe refined finish also makes the TK878 a visually appealing upgrade for high‑quality bike builds.\u003c\/p\u003e\n\u003ch3\u003ePremium or Ceramic Bearings for All‑Conditions Riding\u003c\/h3\u003e\n\u003cp\u003eThe TK878 is available with \u003cstrong\u003ePremium high‑carbon steel bearings\u003c\/strong\u003e for maximum durability or \u003cstrong\u003eTBT ceramic bearings\u003c\/strong\u003e for riders seeking reduced rolling resistance and peak drivetrain efficiency. Both bearing options are precision manufactured and packed with waterproof grease to withstand wet weather, frequent cleaning, and high‑kilometre use.\u003c\/p\u003e\n\u003ch3\u003eX‑Seal Technology for Low Maintenance Reliability\u003c\/h3\u003e\n\u003cp\u003eTOKEN’s patented \u003cstrong\u003eX‑Seal system\u003c\/strong\u003e uses multiple precision seals to protect bearings from moisture, dirt, and trail debris. These seals minimise friction while providing superior contamination resistance — a key advantage for riders who train year‑round or ride in harsh conditions.\u003c\/p\u003e\n\u003cp\u003eThis advanced sealing system helps reduce maintenance requirements and extends service intervals between scheduled bicycle servicing.\u003c\/p\u003e\n\u003ch3\u003eSuitable for Road, Gravel, and Mountain Bike Use\u003c\/h3\u003e\n\u003cp\u003eWith oversized bearings and a robust external design, the TK878 is strong enough for \u003cstrong\u003emountain bike applications\u003c\/strong\u003e, while still offering the smoothness and efficiency demanded by road and endurance riders. This versatility makes it a trusted choice for cyclists seeking a durable bottom bracket solution installed by Brisbane bicycle service professionals.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBottom Bracket Type:\u003c\/strong\u003e Threaded external (BSA)\u003cbr\u003e\u003cstrong\u003eFrame Compatibility:\u003c\/strong\u003e BSA threaded frames\u003cbr\u003e\u003cstrong\u003eCrank Compatibility:\u003c\/strong\u003e Shimano 24 mm spindle\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBearing Options:\u003c\/strong\u003e\u003cbr\u003ePremium high‑carbon steel bearings\u003cbr\u003eTBT ceramic bearings\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003cbr\u003eTBT ceramic version: 95 g per set\u003cbr\u003ePremium bearing version: 98 g per set\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eProduct Codes\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePremium Bearing Version:\u003c\/strong\u003e TK878EX\u003cbr\u003e\u003cstrong\u003eTBT Ceramic Version:\u003c\/strong\u003e TK878TBT\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eInstallation Information\u003c\/h2\u003e\n\u003cp\u003e16‑notch bearing cups, 44 mm outside diameter\u003cbr\u003eTorque wrench compatible, 3\/8\" drive\u003c\/p\u003e\n\u003cp\u003eCompatible professional workshop tools:\u003cbr\u003ePark Tool BBT‑9\u003cbr\u003ePark Tool BBT‑19.2\u003cbr\u003ePark Tool BBT‑69 \/ BBT‑69.2\u003c\/p\u003e\n\u003c\/div\u003e\u003cp\u003eNote: Bottom bracket weight does not include spacers.\u003c\/p\u003e","brand":"Token","offers":[{"title":"Frame Type: BSA","offer_id":47257101303979,"sku":null,"price":75.9,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0780\/6402\/5771\/files\/5678900254.jpg?v=1782021243","url":"https:\/\/pedalpassion.cc\/products\/token-tk878-bsa-threaded-external-bottom-bracket-for-shimano","provider":"My Store","version":"1.0","type":"link"}