New-Old-Stock Shimano Dura-Ace HyperGlide (HG) 8-Speed Cassette 13x23

New-Old-Stock Shimano Dura-Ace HyperGlide (HG) 8-Speed Cassette - 13x23 Thank you for your interest in this item and please visit our store for other offerings. This offering is for a new-old-stock Shimano Dura-Ace HyperGlide cassette (8-speed) with 13-14-15-16-17-19-21-23 gearing.

This is an older cassette unit... Early to mid 90's vintage to be exact and it is HyperGlide compatible, as the shift ramps, etc. That are characteristic of HyperGlide cassettes are easily identifiable on this unit.

Catalog research indicates it was not until the late 90's that Shimano rolled out the 9-speed drivetrain to the Dura-Ace groupset, so these cassettes enjoyed a relatively long production window (which is somewhat surprising given how difficult it is for us to source these Dura-Ace 8-speed HyperGlide cassette units). It is also a top-end unit and will probably mount on just about any Shimano 8/9/10-speed HyperGlide freehub with few exceptions. Having said the above, we measured the "stack height" (for lack of a better term) of this cassette and noted it to be about 38 mm (using our digital calipers). We thought this additional measurement would help ensure compatibility, should you want to measure the width of the intended splined freehub body and compare it to our measurement. One final comment on compatibility...

Please note the HyperGlide cassette design includes a separate threaded lockring that threads into the underside/inside of a freehub body (and this is Shimano's preferred freehub design since the early 90's). As a result, most Shimano freehubs on today's market will be HyperGlide compatible, but please be mindful of Shimano's older freehub bodies with visible external threading at the end of the freehub body, as this older design is generally not compatible with one of these HyperGlide cassettes. As for condition, this cassette unit is new and unused... And will come in it's original retail packaging (although some of the cardboard boxes are shopworn).

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The seller is "bicyclists_retreat" and is located in this country: US. This item can be shipped worldwide.

Model: Dura-Ace
Country/Region of Manufacture: Japan
Part Type: Cassette
Color: Silver
Compatible Bike Type: Road Bike
Brand: Shimano
Number of Speeds: 8 speed