This Shimano adapter allows you to switch from a 140 mm to a 160 mm front or rear brake disc, or from a 160 mm to a 180 mm disc.From 140 mm to 160 mm: if your brake caliper is mounted directly on the frame or fork (without an adapter) with a 140 mm disc, this adapter will allow you to mount a 160 mm disc.From 160 mm to 180 mm: if your brake caliper is mounted directly on the frame or fork (without an adapter) with a 160 mm disc, this adapter will allow you to mount a 180 mm disc.For frames and forks with Postmount mounting, to a Postmount brake caliper.

Front/rear MTB disc brake adapter Postmount to Postmount Shimano for 160 mm and 180 mm discs

(9 reviews)

Rear Postmount > Postmount

I choose my options

Assembly

Position

Ref : 1846860

€12.17

Price : €13.99

In stock

Quantity

Based on 9 reviews

Show reviews

Front/rear MTB disc brake adapter Postmount to Postmount Shimano for 160 mm and 180 mm discs

More details In stock

Front/rear MTB disc brake adapter Postmount to Postmount Shimano for 160 mm and 180 mm discs

€12.17

Also available in store

Our team suggests

You may also like

PM adapter for Scott Spark 180 mm disc

Compatible with Scott Spark - For 180 mm disc mounting

€19.95

Outil repousse piston étrier de frein à disque Pro PRTLB051

Pro PRTLB051 Disc Brake Caliper Piston and Pad Retractor Tool

Spread without damaging the pads

€14.99

Price : €23.99

(35 reviews)

Shimano B05S-RX organic MTB brake pads - EBPB05SRXA

Replacement for the B01S and B03S models

€4.89

Price : €9.99

(115 reviews)

Shimano RT-CL800 road and MTB bike brake disc with external nut

From 203 to 140 mm, external clamping nut

€40.99

Price : €59.99

(32 reviews)

adaptateur étrier de frein Magura QM 40 Postmount vers Postmount 160/180 mm

Magura QM 40 Postmount to Postmount 160/180 mm brake caliper adapter

Offset +20 mm - Mounts 160 or 180 mm discs

€8.95

Price : €9.99

(1 review)

Adaptateur étrier de frein Magura QM 44 Postmount vers Postmount 180/203 mm

Magura QM 44 Postmount to Postmount 180/203 mm brake caliper adapter

For 203 mm discs

€8.99

Price : €10.00

Adaptateur étrier de frein Magura QM 45 Postmount vers Postmount 180-220/140-180 mm

Magura QM 45 Postmount to Postmount 180-220/140-180 mm brake caliper adapter

For 220 mm front disc, 180 mm rear disc

€8.95

Price : €10.00

(1 review)

adaptateur étrier de frein Shimano SM-MA-F203 Postmount vers Postmount

Shimano SM-MA-F203 Postmount to Postmount front brake caliper adapter

Offset +43 mm - 203 mm disc mounting

€11.11

Price : €12.99

DT Swiss centre lock disc brake adapter to 6-hole MTB

- 210 mm max

€20.25

(1 review)

Massi IS MTB rear brake adapter

Sturdy and lightweight

€8.95

(2 reviews)

We value your opinion

Our customers, our best ambassadors

Show attestation

Reviews subject to control

1★

2★

3★

4★

5★

8.6/10

Based on 9 reviews

Ludovic C.
Published May 15, 2026 at 11:00 pm (Order date: Apr 30, 2026)

5

Perfect, thank you. (Translated review)
Rafael D.
Published Oct 25, 2024 at 09:08 am

5

Fast shipping and quality part (Translated review)
Sebastien a.
Published Oct 27, 2023 at 06:34 pm

3

I had to mount this adapter in the reverse direction of installation to be able to adapt it. Otherwise, perfect. (Translated review)
Christophe p.
Published Sep 11, 2023 at 08:23 pm

5

adapted to my Shimano XT caliper and the type of attachment on the frame base of my Cannondale Scalpel SE1 (Translated review)
Laurent G.
Published Jun 11, 2023 at 07:22 pm

5

Adapted for my bike, happy, nothing to report. (Translated review)
Benjamin h.
Published Jul 14, 2021 at 01:23 pm

5

perfect for mounting larger disc adapters (Translated review)
Henri r.
Published Mar 03, 2021 at 11:06 am

4

Hello, too bad there is no manual in French, plus there is a packaging error from the manufacturer, the fixing screws were the same length. Regards HR (Translated review)
Cyril c.
Published Apr 29, 2020 at 02:33 pm

3

Good quality product. But no explanation for the mounting direction for the rear. The manual explains the mounting on the fork (Translated review)
Pierre N.
Published Sep 14, 2017 at 11:25 am

4

Before buying, I sent a message to Matos Vélo through their site: quick and relevant response: thank you. (Translated review)