Rohloff A12 Reduction Sleeve – right-hand, M12x1 Threaded
The Rohloff A12 Reduction Sleeve, right-hand, M12x1 threaded (8598) screws into Syntace X-12 V2 dropouts on the sprocket side and adapts them to the 7 mm axle bolt of the Speedhub 500/14 A12.
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. 
Fine M12x1 thread. For dropouts with the M12x1 thread cut directly into the frame; tightened with a 13 mm spanner to 10 Nm. 
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?
- Riders with a Syntace X-12 V2 frame. The sprocket-side sleeve for an A12 Speedhub.
- Anyone replacing a worn sleeve. The original Rohloff part with the right pitch.
Compatibility
| Rohloff part no. | 8598 |
|---|---|
| Side | Right (sprocket side) |
| Dropout system | Syntace X-12 V2 (M12x1 thread in the dropout) |
| Thread | M12x1 |
| 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
What is the difference to the Syntace V1 part?
Syntace V1 has a clamped M12x1 bush on the sprocket side, which is replaced by 8592 + 8595. V2 has the thread in the dropout itself and takes this threaded sleeve.
Which parts go on the left side?
For Syntace frames: reduction sleeve 8592 plus the conical spacer 8594.
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.