Shimano ES300 Octalink Bottom Bracket

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Shimano ES300 Octalink Bottom Bracket Silver, 73mm, 118mm - 126mm are extra

Shimano ES300 Octalink Bottom Bracket

Silver, 73mm, 118mm - 126mm are extra
was £29.99 now £1.99!

Shimano ES300 Bottom Bracket


This Octalink bottom bracket is a direct replacement for the ES25 and designed to be used with Shimano Octalink chainsets. Octalink splined axle/crank arm interface results in more rigid crank assembly compared to square tapered spindle. Top Features of the Shimano ES300 Octalink Bottom Bracket Splined bottom bracket for use with Shimano Octalink chainsets Oversize BB spindle - large 22 mm diameter hollow cold forged chrome-moly pipe billet spindle reduces weight, increases strength and rigidity Sealed cartridge assembly with oversize ball bearings - maintenance-free high efficiency rubber seals keep out dirt, mud, and water Cartridge design allows easy installation without adjustment

ES300 BB Specification
Components TypeBottom Brackets
Size, ,
Designed for
RetailerChain Reaction Cycles
Lowest Price£1.99

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Or see all of my Bottom Brackets.

Bottom brackets are the component which attaches your chainset to your frame, enabling you to smoothly spin without wasting power. Ideally frictionless and with no horizontal play, they come in a variety of lengths, diameters and fittings, so you have to ensure that your new BB fits both your existing frame and cranks. My bottom bracket section will hopefully list a model to suit your bike.

Or view all of my cycling components.

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Shimano Bottom Brackets

Shimano are a Japanese manufacturer primarily known for their cycling components, and to a lesser extent shoes and clothing. Founded in 1921, Shimano is widely believed to be the largest cycling component manufacturer in the world, having reached this status through a combination of innovation, reliability and value for money. Whatever your style of riding, whether it be road or MTB, Shimano will have a component range to suit your level and budget, from the low end Alivio and Tiagra to the professional standard XTR and Dura-Ace. Over the years, Shimano have revolutionised bicycle gear, brake and pedal systems, such as the recessed SPD, Hollowtech crank arms and smooth shifting Hyperglide sprockets. Initially their component range faced competition from Suntour, whereas nowadays their primary rivals for market share are SRAM and Campagnolo. If you wish to save money on their components and apparel, please visit my Shimano section, where I list as many money saving deals as I can find.

For additional information on Shimano's cycling equipment, please visit either or their wikipedia page - this includes information on Shimano's history, including non-cycling equipment.

About Chain Reaction Cycles

This product is for sale at Chain Reaction Cycles, one of the largest online cycle shops in the world. Opening in 1985, and starting off as a small independent bike shop in Ballynure, it moved to Ballyclare in 1989 and is now based in Doagh (all in Northern Ireland)... For more details on CRC, visit my Chain Reaction Cycles section.

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Welcome to Bike Bargains - I scour the internet trying to find the best deals specifically for UK based cyclists. Over the years I've saved hundreds of pounds on cycling gear, simply by shopping around and buying cycling consumables only when they're on sale. Whether you're a road cyclist or a DH mountain biker, I handpick the best money saving cycling related bargains I can find - and will hopefully save you money too! If any deals have expired, then please let me know by clicking the Expired button, and I'll then remove them. A full list of expired deals can be found here. Bike Bargains is a participant in the Amazon EU Associates Programme, an affiliate advertising programme designed to provide a means for sites to earn advertising fees by advertising and linking to All details are believed to be correct, but please check with the retailer prior to buying - deals and specifications change, and your contract is solely with the retailer. Here is my Privacy Policy.

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Claire x

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