OP
Sun, 22 May 2022 15:58:39 +0000

Lurker
MP3
Joined: Sun, 22 May 2022 15:57:05 +0000
Posts: 2
Location: Vermont
 
Lurker
MP3
Joined: Sun, 22 May 2022 15:57:05 +0000
Posts: 2
Location: Vermont
Sun, 22 May 2022 15:58:39 +0000 quote
Hi, we have an MP3 that was stored in a barn over the winter. One of the front disc brakes is now stuck on/engaged. Suggestions?
Sun, 22 May 2022 21:47:22 +0000

Molto Verboso
2015 MP3 500 ie Business
Joined: Tue, 29 Oct 2019 17:22:26 +0000
Posts: 1005
Location: Belgium
 
Molto Verboso
2015 MP3 500 ie Business
Joined: Tue, 29 Oct 2019 17:22:26 +0000
Posts: 1005
Location: Belgium
Sun, 22 May 2022 21:47:22 +0000 quote
Is this a newer gen MP3 that has ABS? How was the bike stored? Was the bike left exposed to the elements i.e. moisture from cold winter weather? Was the parking brake left on during the winter sleep?

If you are sure the front discs are locked, best strategy is to remove the calipers, loosen the bleeder valves, and manually push the caliper pistons back.

IF the pistons do not retract smoothly, then you are going to need new calipers.

Clean, lube and reassemble everything followed by a complete brake fluid flush.
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