Motorcycle suspension part that prevents fork oil leakage and helps restore smooth damping, the CMPO Fork Oil Seal fits a range of Lexmoto and Longjia models. Confidence returns during cornering and routine maintenance becomes less messy. Is this the correct replacement for your Diablo or Nano fork?
⚡ At a Glance
- • Seal Performance: Designed to stop fork oil escaping from the front suspension, maintaining proper damping and control
- • Best for: Owners of listed Lexmoto and Longjia bikes needing a direct front fork seal replacement
- • Not ideal for: Motorcycles with non-matching fork bore sizes or rear fork applications
Pair format replaces seals on both front forks. Compatibility matches a range of Lexmoto Diablo and Longjia LJ models.
Stop oil leaks - with 31 x 43 x 10.3mm dimensions
Dimensional match to the fork bore ensures the sealing lip sits correctly against the inner tube and outer guide, helping retain oil in the fork assembly. Supplied as two seals allows both sides to be replaced at once.
Correct dimensions restore the fork's ability to hold oil and maintain damping. Replacing both seals together reduces uneven wear and recurring leaks.
Direct fit for common models - thanks to listed compatibility
Compatibility includes multiple Lexmoto Diablo50 and Diablo125 variants plus several Longjia LJ125T and LJ50QT models, matching factory-fit sizes and mounting positions. Front fork designation confirms intended installation position.
Direct-fit replacement cuts installation time and avoids modification. Owners of the specified models can expect straightforward swap-in maintenance.
Simple maintenance upgrade - with pair supply for both forks
Sold as a pair suitable for front forks, enabling simultaneous replacement of left and right seals. Black finish matches many street fork assemblies and keeps the appearance consistent.
Replacing both seals at once prevents repeat visits and promotes balanced fork behaviour. A matched pair helps maintain consistent damping and ride feel.
✨ The 4 Key Reasons for CMPO Fork Oil Seal
- Exact fit dimensions - Restores oil retention and correct damping immediately
- Pair included - Enables simultaneous left and right replacement for balanced forks
- Wide compatibility list - Fits multiple Lexmoto Diablo and Longjia models without modification
- Front fork specific - Designed for street motorcycle front suspension to match original position
📋 Technical Details at a Glance
- Category: Suspension > Forks and Fork Seals
- Product type: Fork Oil Seal
- Brand: CMPO
- Dimensions: 31 x 43 x 10.3mm
- Compatible models: Lexmoto Diablo50 E55 LJ50QT-9M-E55, Diablo50 Euro 5 LJ50QT-9M-E5, Diablo50 LJ50QT-9M, Diablo125 E55 LJ125T-9M-E55, Diablo125 EFI LJ125T-8M-E4, Diablo125 Euro 5 LJ125T-9M-E5, Diablo125 LJ125T-8M, L5 LJ50QT-7E-E55, LJ125T-X-E5, Nano 50 LJ50Q, Longjia LJ125T-9M, LJ125T-X
❓ Frequently Asked Questions
Q: Which motorcycle models are supported?
A: Compatibility lists multiple Lexmoto Diablo50 and Diablo125 variants plus several Longjia LJ125T and LJ50QT variants as given in the product description.
Q: Is the item supplied as a single seal or a pair?
A: Supplied as a pair, suitable for replacing both front fork seals at the same time.
Q: Are these seals for the front or rear forks?
A: The description specifies front fork use, intended for front suspension sealing and damping maintenance.
🏆 Our Verdict
Suitable for owners of specified Lexmoto and Longjia motorcycles who need a direct front fork seal replacement. Exact 31 x 43 x 10.3mm sizing and a paired supply make the seals a practical swap-in solution that restores oil retention and fork behaviour. Long-term value comes from reduced repeat maintenance and more consistent fork performance.
