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Shimano · Press-fit bottom bracket
A dependable Shimano press-fit bottom bracket for **BB86 road frames** and **24 mm HOLLOWTECH II** cranks.
$39.99
PriceIn stock, ready to ship
If your road frame uses a 41 mm press-fit BB86 shell and you're running a Shimano 24 mm HOLLOWTECH II crank, this is the straightforward replacement that keeps things simple. It’s built for long-lasting performance, uses Shimano’s new seal construction, and gives you the easy compatibility most riders want when they just need the right bottom bracket without overthinking it.
Sold by Ashburton Cycles
Verified store
Price
$39.99
Type
Press-Fit
Shell width
86.5 mm
Series
TIAGRA
The Shimano TIAGRA BB-RS500-PB is a press-fit bottom bracket for frames with an 86.5 mm shell width and a 41 mm inner diameter, built around Shimano’s 24 mm HOLLOWTECH II road crank standard. If your bike already uses this format, it’s the sensible replacement when the old unit feels rough, noisy or overdue for renewal.
What we like here is the balance of simple compatibility, low fuss servicing and the kind of smooth, reliable performance most riders want from a bottom bracket. Shimano’s new seal construction is aimed at durability, while the press-fit cup design keeps the package light and tidy inside a BB86 frame. For riders on Tiagra, Sora, Claris and other compatible Shimano 2-piece road cranks, it’s an easy match rather than a guesswork purchase.
The key thing is buying the correct standard. This bottom bracket is for BB86 / PF41-style 86.5 mm road shells with Shimano 24 mm cranks. It is not the right choice for Trek BB90, BB30, or larger-diameter spindle systems such as SRAM DUB without a different bottom bracket. If your frame and crank standard line up, this is the kind of fit-and-ride replacement that makes a lot of sense.
Ideal for riders replacing a worn BB86 road bottom bracket and wanting a genuine Shimano option for a 24 mm HOLLOWTECH II crank without moving to a more expensive thread-together or ceramic setup.
BB86 road fit
Designed for 86.5 mm press-fit road shells, making it the correct choice for BB86-style frames that use a 41 mm bore.
HOLLOWTECH II compatibility
Built to suit Shimano 24 mm integrated axle cranks, so it matches common Shimano 2-piece road cranksets cleanly.
New seal construction
Updated sealing helps keep out dirt and water, which matters for year-round riding and wet road use.
Long-lasting performance
A practical replacement for tired or gritty bottom brackets when you want smooth running and dependable everyday use.
Lightweight resin cup design
Uses resin press-fit cups, keeping weight down and offering a frame-friendly interface for press-fit installation.
Complete assembly
Supplied as a complete press-fit assembly with left and right cups plus the internal cover and sealing parts.
Genuine Shimano replacement
A safe, straightforward pick when you want to stay with Shimano standards rather than experimenting with conversion systems.
Shimano BB RS500 Bottom Bracket
MarksCycleRepairs
Every detail as listed by the manufacturer.
Shimano is a Japanese component brand founded in 1921 in Sakai, Osaka. The company began with bicycle component manufacturing and has grown into a global business focused on bicycle components, fishing tackle and rowing equipment, while keeping its headquarters in Sakai. In cycling, Shimano is best known for building complete component ecosystems that span road, mountain, gravel, commuting and e-bike use. Its range covers drivetrains, brakes, wheels, pedals, shoes and related parts, and the brand has had a long presence in Australia through a local business established in Sydney in 1992.
Shimano · Press-fit bottom bracket
A dependable Shimano press-fit bottom bracket for **BB86 road frames** and **24 mm HOLLOWTECH II** cranks.
$39.99
In stockType
Press-Fit
Shell width
86.5 mm
Series
TIAGRA
Platform
HOLLOWTECH II
If your road frame uses a 41 mm press-fit BB86 shell and you're running a Shimano 24 mm HOLLOWTECH II crank, this is the straightforward replacement that keeps things simple. It’s built for long-lasting performance, uses Shimano’s new seal construction, and gives you the easy compatibility most riders want when they just need the right bottom bracket without overthinking it.
The Shimano TIAGRA BB-RS500-PB is a press-fit bottom bracket for frames with an 86.5 mm shell width and a 41 mm inner diameter, built around Shimano’s 24 mm HOLLOWTECH II road crank standard. If your bike already uses this format, it’s the sensible replacement when the old unit feels rough, noisy or overdue for renewal.
What we like here is the balance of simple compatibility, low fuss servicing and the kind of smooth, reliable performance most riders want from a bottom bracket. Shimano’s new seal construction is aimed at durability, while the press-fit cup design keeps the package light and tidy inside a BB86 frame. For riders on Tiagra, Sora, Claris and other compatible Shimano 2-piece road cranks, it’s an easy match rather than a guesswork purchase.
The key thing is buying the correct standard. This bottom bracket is for BB86 / PF41-style 86.5 mm road shells with Shimano 24 mm cranks. It is not the right choice for Trek BB90, BB30, or larger-diameter spindle systems such as SRAM DUB without a different bottom bracket. If your frame and crank standard line up, this is the kind of fit-and-ride replacement that makes a lot of sense.
Ideal for riders replacing a worn BB86 road bottom bracket and wanting a genuine Shimano option for a 24 mm HOLLOWTECH II crank without moving to a more expensive thread-together or ceramic setup.
BB86 road fit
Designed for 86.5 mm press-fit road shells, making it the correct choice for BB86-style frames that use a 41 mm bore.
HOLLOWTECH II compatibility
Built to suit Shimano 24 mm integrated axle cranks, so it matches common Shimano 2-piece road cranksets cleanly.
New seal construction
Updated sealing helps keep out dirt and water, which matters for year-round riding and wet road use.
Long-lasting performance
A practical replacement for tired or gritty bottom brackets when you want smooth running and dependable everyday use.
Lightweight resin cup design
Uses resin press-fit cups, keeping weight down and offering a frame-friendly interface for press-fit installation.
Complete assembly
Supplied as a complete press-fit assembly with left and right cups plus the internal cover and sealing parts.
Genuine Shimano replacement
A safe, straightforward pick when you want to stay with Shimano standards rather than experimenting with conversion systems.
Shimano BB RS500 Bottom Bracket
MarksCycleRepairs