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Generic · Road bottom bracket
A sealed OCTALINK cartridge bottom bracket for Italian-threaded road frames.
$79.99
PriceIn stock, ready to ship
We recommend this bottom bracket when you’re restoring or maintaining a compatible road bike with a 70 mm Italian bottom bracket shell and an OCTALINK double crankset. Its 109.5 mm spindle and sealed cartridge construction provide a straightforward replacement with the correct dimensions for the listed application.
Sold by Ashburton Cycles
Verified store
Price
$79.99
Interface
OCTALINK
Spindle length
109.5 mm
Bottom bracket shell
70 mm Italian
This is a road bottom bracket built around an OCTALINK splined spindle and a sealed cartridge unit. The 8-spline interface creates a positive connection between the compatible crankset and spindle, making it a suitable choice for maintaining an older OCTALINK-equipped road bike.
The 109.5 mm spindle length is specified for double cranksets, with a 43.5 mm chain line. Before ordering, check that your frame uses a 70 mm Italian-threaded shell with M36 x 24 T.P.I. threading; this version is not the same fit as a 68 mm English/BSA bottom bracket.
The listed compatible front chainwheels are FC-5501, FC-5502, FC-5504 and FC-5505. Installation and removal use tool reference TL-UN74-S, and the bottom bracket and adapter tightening torque is 50–70 N·m. Apply grease before installation, avoid high-pressure water when cleaning, and replace the unit if axle looseness develops.
Best suited to someone servicing a compatible road bike with a 70 mm Italian shell, double OCTALINK crankset and 109.5 mm spindle requirement.
OCTALINK splined interface
The 8-spline connection provides a positive fit between the compatible crankset and bottom bracket spindle.
Italian-threaded fit
Designed for frames with a 70 mm Italian bottom bracket shell and M36 x 24 T.P.I. threading.
109.5 mm spindle
The specified axle length is intended for compatible double crankset applications.
Sealed cartridge unit
The enclosed cartridge construction is supplied as a complete bottom bracket assembly for straightforward replacement.
Correct 43.5 mm chain line
The specified chain line helps preserve the intended drivetrain position when matched with the correct crankset and frame standard.
Listed crankset compatibility
Suitable for the specified FC-5501, FC-5502, FC-5504 and FC-5505 front chainwheel applications.
Workshop-ready installation
Use the TL-UN74-S installation and removal tool reference, grease the bottom bracket before fitting and tighten to 50–70 N·m.
Every detail as listed by the manufacturer.
Generic is a catalogue designation for products presented without a distinct store-brand identity. The term describes the retail classification rather than a separate manufacturer history or geographic origin. Generic-labelled products can still have clearly defined specifications, standards and compatibility requirements. For this component, the catalogue designation is retained while the fitment details identify the relevant road bottom bracket application.
Generic · Road bottom bracket
A sealed OCTALINK cartridge bottom bracket for Italian-threaded road frames.
$79.99
In stockInterface
OCTALINK
Spindle length
109.5 mm
Bottom bracket shell
70 mm Italian
Thread dimensions
M36 x 24 T.P.I.
We recommend this bottom bracket when you’re restoring or maintaining a compatible road bike with a 70 mm Italian bottom bracket shell and an OCTALINK double crankset. Its 109.5 mm spindle and sealed cartridge construction provide a straightforward replacement with the correct dimensions for the listed application.
This is a road bottom bracket built around an OCTALINK splined spindle and a sealed cartridge unit. The 8-spline interface creates a positive connection between the compatible crankset and spindle, making it a suitable choice for maintaining an older OCTALINK-equipped road bike.
The 109.5 mm spindle length is specified for double cranksets, with a 43.5 mm chain line. Before ordering, check that your frame uses a 70 mm Italian-threaded shell with M36 x 24 T.P.I. threading; this version is not the same fit as a 68 mm English/BSA bottom bracket.
The listed compatible front chainwheels are FC-5501, FC-5502, FC-5504 and FC-5505. Installation and removal use tool reference TL-UN74-S, and the bottom bracket and adapter tightening torque is 50–70 N·m. Apply grease before installation, avoid high-pressure water when cleaning, and replace the unit if axle looseness develops.
Best suited to someone servicing a compatible road bike with a 70 mm Italian shell, double OCTALINK crankset and 109.5 mm spindle requirement.
OCTALINK splined interface
The 8-spline connection provides a positive fit between the compatible crankset and bottom bracket spindle.
Italian-threaded fit
Designed for frames with a 70 mm Italian bottom bracket shell and M36 x 24 T.P.I. threading.
109.5 mm spindle
The specified axle length is intended for compatible double crankset applications.
Sealed cartridge unit
The enclosed cartridge construction is supplied as a complete bottom bracket assembly for straightforward replacement.
Correct 43.5 mm chain line
The specified chain line helps preserve the intended drivetrain position when matched with the correct crankset and frame standard.
Listed crankset compatibility
Suitable for the specified FC-5501, FC-5502, FC-5504 and FC-5505 front chainwheel applications.
Workshop-ready installation
Use the TL-UN74-S installation and removal tool reference, grease the bottom bracket before fitting and tighten to 50–70 N·m.