2020 KTM 125 Rear Brake Cylinder Upgrade: Master Cylinder Reservoir

This Complete 2020 KTM 125 Rear Master Cylinder Reservoir Upgrade can be built for either a firmer brake pedal or a more progressive feel.   More…

$299  Was $489.00

(1 review)

2020 KTM 125 Rear Brake Cylinder Upgrade: Master Cylinder Reservoir

This Complete 2020 KTM 125 Rear Master Cylinder Reservoir Upgrade can be built for either a firmer brake pedal or a more progressive feel.   More…

$299  Was $489.00

(1 review)

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2020 KTM 125 Rear Brake Cylinder Upgrade: 

This Complete 2020 KTM 125 Rear Master Cylinder Reservoir Upgrade can be built for either a firmer brake pedal or a more progressive feel. To upgrade the Billet Brembo CNC Rear Brake Cylinder in the last photo, click the upgrade option.

Select the green option above if a more progressive is desired.

What’s included with this 2020 KTM 125 Rear Brake Cylinder?

    • Nissin or Brembo – Brake master that’s fully assembled.
    • Titanium mounting & cover bolts.
    • Built-in Spring and CNC Clevis.
    • Built-in reservoir cap replaces older designs with remote plastic reservoirs.
    • Installed Piston & seals.
    • Genuine rubber dust cover and spring.
    • Everything’s included and assembled as reference pictures.
  • Just Bleed & Ride!

 

Compatibility/Fitment

This is a list of all the years we carry this part for, yet there may be a different part number from year to year. If your bike is listed, no worries; the product will fit your ride. If any mods are done to the bike, please let us know on the checkout page or in a message after purchase so we can send the correct product for your ride.

BrandModelYear
KTMKTM 1251998
KTMKTM 1251999
KTMKTM 1252000
KTMKTM 1252001
KTMKTM 1252002
KTMKTM 1252003
KTMKTM 1252004
KTMKTM 1252005
KTMKTM 1252006
KTMKTM 1252007
KTMKTM 1252008
KTMKTM 1252009
KTMKTM 1252010
KTMKTM 1252011
KTMKTM 1252012
KTMKTM 1252013
KTMKTM 1252014
KTMKTM 1252015
KTMKTM 1252016
KTMKTM 1252017
KTMKTM 1252018
KTMKTM 1252019
KTMKTM 1251986
KTMKTM 1251987
KTMKTM 1251988
KTMKTM 1251989
KTMKTM 1251990
KTMKTM 1251991
KTMKTM 1251992
KTMKTM 1251993
KTMKTM 1251994
KTMKTM 1251995
KTMKTM 1251996
KTMKTM 1251997
KTMKTM 1252020
KTMKTM 1252021
KTMKTM 1252022
KTMKTM 1252023
KTMKTM 1252024
KTMKTM 1252025
KTMKTM 1252026

Questions? Go to Q&A

1 review for 2020 KTM 125 Rear Brake Cylinder Upgrade: Master Cylinder Reservoir

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  1. Kirk –

    looks and works better than the stock kx500 master

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Q & A

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2020 KTM 125 Rear Brake Cylinder Upgrade: Master Cylinder Reservoir 2020 KTM 125 Rear Brake Cylinder Upgrade: Master Cylinder Reservoir
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2025 CRF450RL has 3/8 rear brake master cylinder which is the small piston. I want to order the progressive master cylinder from you guys which also has the small piston. What is the difference between the OEM master VS your progressive master? I need precision rear braking for wheelies, the OEM has a numb feeling. TIA. Adrian asked on March 10, 2025

9mm 3/8 is the smallest for that model just have 11 and 13mm for better strength.

 Boston Morse answered on March 13, 2025 store manager
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I race flattrack and we rely on rear brake feel to controls wheel spin. Recently switched to a 2025 Yamaha 450 and it’s way too grabby. What recommendations yall have thanks Justin jones asked on January 17, 2025

yes we have a 15% smaller piston available

 Boston Morse answered on January 17, 2025 store manager
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comment kit installer sur yz 250 1987 avec photo svp david asked on November 10, 2024
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I have a 23 TE 300 with braktek brakes. I would like to upgrade the rear so would I just need a new master cylinder a lever and caliper too? Ryan asked on June 11, 2024

Yes, this and the caliper will do the trick. The lever is optional.

 answered on June 13, 2024 store manager
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what are the piston sizes for the yz 450 rear master cylinder. upgraded for more stopping not the more progressive model . Thanks john lundgren asked on August 18, 2023

13mm we have for that one

 answered on August 19, 2023 store manager
(0) (0)
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Q & A

Ask a question
2020 KTM 125 Rear Brake Cylinder Upgrade: Master Cylinder Reservoir 2020 KTM 125 Rear Brake Cylinder Upgrade: Master Cylinder Reservoir
Your question
* Question is required
Name
* Name is required
* Please tick the checkbox to proceed
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
2025 CRF450RL has 3/8 rear brake master cylinder which is the small piston. I want to order the progressive master cylinder from you guys which also has the small piston. What is the difference between the OEM master VS your progressive master? I need precision rear braking for wheelies, the OEM has a numb feeling. TIA. Adrian asked on March 10, 2025

9mm 3/8 is the smallest for that model just have 11 and 13mm for better strength.

 Boston Morse answered on March 13, 2025 store manager
(0) (0)
Add an answer
Your answer
* Answer is required
Name
* Name is required
* Please tick the checkbox to proceed
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
I race flattrack and we rely on rear brake feel to controls wheel spin. Recently switched to a 2025 Yamaha 450 and it’s way too grabby. What recommendations yall have thanks Justin jones asked on January 17, 2025

yes we have a 15% smaller piston available

 Boston Morse answered on January 17, 2025 store manager
(0) (0)
Add an answer
Your answer
* Answer is required
Name
* Name is required
* Please tick the checkbox to proceed
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
comment kit installer sur yz 250 1987 avec photo svp david asked on November 10, 2024
(0) (0)
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Your answer
* Answer is required
Name
* Name is required
* Please tick the checkbox to proceed
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
I have a 23 TE 300 with braktek brakes. I would like to upgrade the rear so would I just need a new master cylinder a lever and caliper too? Ryan asked on June 11, 2024

Yes, this and the caliper will do the trick. The lever is optional.

 answered on June 13, 2024 store manager
(0) (0)
Add an answer
Your answer
* Answer is required
Name
* Name is required
* Please tick the checkbox to proceed
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
what are the piston sizes for the yz 450 rear master cylinder. upgraded for more stopping not the more progressive model . Thanks john lundgren asked on August 18, 2023

13mm we have for that one

 answered on August 19, 2023 store manager
(0) (0)
Add an answer
Your answer
* Answer is required
Name
* Name is required
* Please tick the checkbox to proceed
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Need help with installation? Get a hold of a live agent.

FAQ

Is Shipping Included?

Yes, there is free shipping on all 2020 KTM 125 Rear Brake Cylinder Upgrade: Master Cylinder Reservoir‘s in the continental US.

Is fitment guaranteed?

Yes, when all options are selected for the 2020 KTM 125 Rear Brake Cylinder Upgrade: Master Cylinder Reservoir, fitment is guaranteed.

Do you ship worldwide?

Yes, we ship all products internationally for an additional cost. Additional shipping costs for a product will show when your region is selected on the checkout page under shipping.

What is your product return policy?

With any 2020 KTM 125 Rear Brake Cylinder Upgrade: Master Cylinder Reservoir for sale online, PayPal, Apple Pay, Google Pay and credit card are covered by a 30-day return/replace policy if the product is defective or if you don’t receive what you ordered. But since most products we offer are customized to your order, we cannot accept returns and provide refunds for non-warranty reasons (but our products are easy to sell on eBay or Craigslist!). Read more here.

How do I speak with a live agent?

Use the Q&A feature on any product page (see the Q&A tab on this page, for example) where you can get product-specific answers to your questions, OR get one-on-one pro help by phone or video using our Pro Direct Connect service.
2020 KTM 125 Rear Brake Cylinder Upgrade: Master Cylinder Reservoir 1

Click here to browse more parts & upgrades for your KTM 125.

Free Shipping

Free shipping
within the continental US.

Product Options

Upgrades and/or product condition
options are available for this part.

Product Guarantee!

Compatibility and quality is guaranteed!
Return defective items within 30 days.

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