Rohloff A12 Reduction Sleeve left hand
The Rohloff A12 Reduction Sleeve, left-hand (8592) adapts a 12 mm thru-axle dropout to the 7 mm axle bolt of the Speedhub 500/14 A12 – the standard sleeve for DT Swiss/Maxle, Syntace X-12 and Shimano E-Thru frames.
Why the original sleeve?
12 mm to 7 mm. A12 reduction sleeves reduce the 12 mm thru-axle opening to 7 mm for the M7x1 Rohloff axle bolts. 
The most-used sleeve. Rohloff uses 8592 on the left side of DT/Maxle, Syntace and Shimano E-Thru frames – and also on the right with Syntace V1 and E-Thru. 
Measured, not guessed. Rohloff states that 12 mm thru-axle frames must be measured with the A12 dropout measurement kit (Art. 8600) to work out which reduction sleeves and spacers are needed.
Who is it for?
- Owners of an A12 Speedhub. A spare for the left dropout of almost every A12 installation.
- Workshops. The sleeve that appears in nearly every A12 fitting list.
Compatibility
| Rohloff part no. | 8592 |
|---|---|
| Side | Left (disc brake side); also right side with Syntace V1 and Shimano E-Thru |
| Dropout system | DT Swiss / Maxle, Syntace X-12 V1 and V2, Shimano E-Thru 12 mm |
| Hub | Speedhub 500/14 A12 (12 mm thru axle) |
| Function | Reduces the 12 mm dropout to 7 mm for the M7 axle bolt |
Frequently asked questions
Is this sleeve enough on its own?
Depends on the dropout: on Syntace frames it goes with the conical spacer 8594, on Shimano E-Thru with the spacer 8596/8597, on DT/Maxle it is inserted into the spacer from outside.
Are there other lengths?
Rohloff also lists 8592S special sizes for non-standard frames. If your hub came with a "Custom" label, follow the article number on that label – ask us if unsure.
About Rohloff
Rohloff AG is a German manufacturer from the Kassel area, best known for the Speedhub 500/14 – a sealed 14-speed gear hub with evenly spaced gears. Rohloff sells every spare part as an individual item, so a Speedhub can be serviced and adapted to a new frame instead of being replaced.
BoodaBike (Massive Bikes, Budapest) is an official Rohloff service centre, trained by Rohloff, and an official European distributor of Rohloff hubs and parts. We build Speedhub bikes with Gates belt drive ourselves – if you are unsure which part fits your hub or frame, ask us before ordering.