Automotive replacement part for Lexmoto 125 models promising straightforward fit and dependable drivetrain performance. Riders seeking a reliable rear sprocket with reported improvements to top-end speed will find clear appeal from CMPO Rear Sprocket 520-40T. Is it the right upgrade for everyday use and occasional spirited riding?
⚡ At a Glance
- • Drive Compatibility: Designed for Lexmoto LXR, LXR SE and LXS 125 Euro 5 models, matching a 520 chain system
- • Best for: Lexmoto LXR 125 and LXS 125 owners needing a direct-replacement rear sprocket
- • Not ideal for: Motorcycles that use a different chain size or non-Lexmoto models
Rear sprocket identified as 520-40T and listed with part code SPKR129. Fits the Lexmoto 125 range named in the compatibility list.
Higher cruising potential - thanks to 520-40T tooth count
A rear sprocket marked 520-40T uses a 520 chain size and 40 teeth, altering the final drive ratio compared with different tooth counts. The sprocket transmits engine torque through the chain to the rear hub, affecting acceleration and top speed balance.
Several users report an increase in top-end speed after fitting the 40-tooth rear sprocket, making it suitable for riders who prioritise higher cruising pace on open roads.
Solid, reliable construction - with defined tooth profile and machining
The sprocket's tooth profile and machining determine how smoothly power passes to the chain and rear wheel, reducing uneven wear when matched correctly. User feedback explicitly notes very good build quality after installation.
Robust feel and positive user comments suggest dependable service life, reducing the likelihood of premature replacement for everyday riding.
Direct fitment for listed Lexmoto models - with explicit compatibility
Compatibility is specified for Lexmoto LXR 125 Euro 5 SY125-10-E5, LXR 125 SY125-10, LXR SE 125 Euro 5 SY125-10-SE-E5, LXR SE 125 SY125-10-SE and LXS 125 Euro 5 TR125-GP2-E5. The rear sprocket mounts to the rear wheel hub and works with the front sprocket and chain to transfer drive.
Straightforward replacement for owners of the named Lexmoto bikes, reducing time spent searching for a correct-match part.
✨ The 4 Key Reasons for CMPO Rear Sprocket 520-40T
- Proven build quality - Confident, long-lasting performance reported by multiple users
- Performance tuning - Noted increase in top-end speed for riders wanting higher cruising pace
- Part number SPKR129 - Simplifies finding the exact replacement when ordering
- Strong user recommendation - Repeat buyers report satisfaction and would purchase again
📋 Technical Details at a Glance
- Category: Automotive Parts and Accessories
- Type: Rear sprocket
- Brand: CMPO
- Part number: SPKR129
- Chain size: 520
❓ Frequently Asked Questions
Q: Which Lexmoto models does this sprocket fit?
A: Compatibility is listed for Lexmoto LXR 125 Euro 5 SY125-10-E5, LXR 125 SY125-10, LXR SE 125 Euro 5 SY125-10-SE-E5, LXR SE 125 SY125-10-SE and LXS 125 Euro 5 TR125-GP2-E5.
Q: What are the sprocket's basic specifications?
A: Marked as a 520-40T rear sprocket, the part is designed for a 520 chain and has 40 teeth, for rear-wheel installation.
Q: Do users find the sprocket reliable?
A: User reviews describe very good build quality and several buyers recommend the sprocket and would purchase again, indicating reliable performance.
🏆 Our Verdict
Suitable for Lexmoto LXR and LXS 125 owners who want a direct-replacement rear sprocket with reported performance gains. Clear compatibility listing and user praise for build quality form the main selling points. Long-term value appears strong thanks to dependable construction and straightforward match to the listed Lexmoto models.
