Shimano 4 pot calip...
 

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[Closed] Shimano 4 pot calipers -what are the main differences?

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Got an MT520 on the front which is fantastic so thought i'd get one for the rear BUT then i saw the MT420 which is cheaper and claims to be 90% more powerful??

https://www.deporvillage.net/shimano-mt420-dt-display-resin-disc-brake-black?gclid=Cj0KCQjwzN71BRCOARIsAF8pjfiZVCHcOVbwy8B9J3dkxaFsRN6fK-57YhVNuNE9z1IuXwLVoEcPkkMaAlP-EALw_wcB

https://www.deporvillage.net/shimano-mt520-post-mount-4-pistons-resin-black-disc-brake?gclid=Cj0KCQjwzN71BRCOARIsAF8pjfhOdGXAbI0FAmXzZ_76kmTJBF9-ZllqkvDiA9e6o8skDpuE7Aq99fgaAgizEALw_wcB

do i stick with the MT520 or twist on the MT420??


 
Posted : 10/05/2020 8:22 pm
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Those figures are nonsense - it’s just a cheaper version of the 520.

JP


 
Posted : 10/05/2020 8:34 pm
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Read the Shimano literature - it’s got 90% of the power of the 520, not 90% more!

JP


 
Posted : 10/05/2020 8:39 pm
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Misread - loooooooooong day! MT520 for the rear unless i can find some sram guides with code calipers


 
Posted : 10/05/2020 8:43 pm
 mboy
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What caliper do you have on the rear at the moment? I've got M520's on my Hardtail, front and back. To be honest, a 4pot on the rear is overkill for me on that bike I find, so would consider a PX with a 2 pot caliper for my 4 pot if you've got a 2 pot I could use instead...


 
Posted : 10/05/2020 9:38 pm
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I’ve a 2 pot m520 on the back


 
Posted : 10/05/2020 9:44 pm
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Mt500 even


 
Posted : 10/05/2020 9:45 pm
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As it’s my only bike I’d need it before I could send mine, any problem there?


 
Posted : 10/05/2020 9:46 pm
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Marketing people just making up numbers. WTF does "150% more water resistance" actually mean?

Features:
- 90 % more braking power than BR-MT520
- 20 % more braking power than the current two-piston BR-MT400
- 150 % more water resistance than the current two-piston BR-MT400
- Brake pad: resin, metal


 
Posted : 11/05/2020 12:14 am
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Misread – loooooooooong day! MT520 for the rear unless i can find some sram guides with code calipers

They're called Guide RE. last gen code caliper but work the same give or take.


 
Posted : 11/05/2020 5:55 am
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To be honest, a 4pot on the rear is overkill for me

Whereas 13.5/14st of me thinks that Deore MT520 4-pot with Kevlar pads are the absolute shizzle and make me realise how underpowered my old two pot 500's were. I used to have issues with glazing over on some bigger descents, not any more.


 
Posted : 11/05/2020 8:13 am
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what's the cheapest 4 pot caliper with banjo fitting? Anyone know? SLX?


 
Posted : 11/05/2020 10:13 am
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ive had great luck picking up zees for 70-80 per end...


 
Posted : 11/05/2020 10:37 am

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