Lewis AX Service Kit for AX Lever and Caliper
Lewis AX Service Kit for AX Lever and Caliper
For AX Lever
CHS35 Piston Body x1
CTZ10 Piston Sleeve x1
COX315512 Oil Port O-ring x1
CMF21 Diaphragm x1
CLS75 Piston Sleeve set screw x1
CTH01 Piston Spring x1
COX040715 Piston Rear Seal x1
CMF22 Piston Front Seal x1
COX030615 Lever Oil Hose Connector O-ring x1
COX761012 Piston Sleeve O-ring x2
For AX Caliper
COX560812 Banjo Fix Screw O-rings x2
COX070901 Oil Port O-ring x1
CMF40-HNBR 20mm Piston Seals x2
CMF39-HNBR 18mm Piston Seals x2
COX2042418 Bore Cap Seal x1
COX1842218 Bore Cap Seal x1
It is recommended that everyone consult with us or our dealers before making a purchase.
Retail Price: US$17.9/kit,Tax Excluded
Worldwide Dealers Wanted
For purchasing more matching brakes, please click on "Inquire now" to leave us a message.
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Tuning & Spare Parts
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How to Identify Correct Service Kit G1 or G2 for LH4 and LHT ?
Introduction of G1 and G2 Service kits
For the LH4/LHT lever brackets, we have introduced Service kits to upgrade and optimize them, aiming to service the brakes and minimize the risk of oil leakage and also long durability. Depending on the bracket version, we offer G2 and G1 service kits, and you should recommend the appropriate one based on the bracket type.
The New Piston Sleeve is hard anodized for long durability, and Additionally, the new Service kit is also compatible with LHP-S4.
Differences Between 1st Generation (G1) and 2nd Gerneration (G2)Service Kits:
l The piston sleeve length and installation method differ.
Ø The 1st generation version is short and uses a snap ring for installation.


Ø The 2nd generation is longer and uses set screws on the bracket.


How to Identify the Correct Service Kit?
1. 1st generation service kit: Use if the bracket has no marking in this area and No Set Screw Hole on the back.


2. 2nd generation service kit: Use if the bracket is marked with X, a, a1, or a1(1).


Installation video below.
1st Generation service kit:
https://drive.google.com/file/d/1aPgMcZruv2fzT0UMZJHbubph4_ZEwnAP/view?usp=drive_link
2nd Generation Service Kit:
https://drive.google.com/file/d/1ZMWq0_xG2WMTFftyE7ZHoqIxoFH9PCFd/view?usp=drive_link
Thanks, any question, feel free to contact us.
Lewis Team
2025-7-4