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โก Keep your ride tight, smooth, and unstoppable!
The sthus Black Spring Loaded Chain Tensioner is a robust metal component engineered for 49cc to 80cc motorized bikes. Its spring-loaded mechanism ensures optimal chain tension, preventing chain slippage and reducing vibration. Adjustable for personalized tightness, it extends the lifespan of your drivetrain parts while delivering a smoother, more reliable ride.
| ASIN | B07NXX4PV4 |
| Brand | sthus |
| Customer Reviews | 4.1 out of 5 stars 2,433 Reviews |
| Item Length | 45 Inches |
| Item Weight | 300 Grams |
| Item length | 45 Inches |
| Load Capacity | 2.5E+2 bis 500 N |
| Load capacity | 2.5E+2 bis 500 N |
| Manufacturer | sthus |
| Manufacturer Part Number | AMWZ_MZ0052-1 |
| Material | Metal |
| Model Number | AMWZ_MZ0052-1 |
| Recommended Uses For Product | Maintaining proper chain tension in motorized bikes with 49cc, 66cc, and 80cc engines |
| Recommended uses for product | Maintaining proper chain tension in motorized bikes with 49cc, 66cc, and 80cc engines |
| Strand Type | Multiple |
| Strand type | Multiple |
| Unit Count | 1.0 count |
W**M
The best!
I struggled with many chain tensioners thinking ok i got it this time...? Dont kid yourself.. spring-loaded tensioners are the best solution for sure! The one thing I needed to do.. I grinded the bolt heads down about half.. so crank peddle can pass freely.. Use double nuts on the bolt harnessing flex part, to lock tight but still loose enough for tensioner to flex.. Thats it.. Works great!
B**R
Good parts 100%
Works as it should excellent would buy again
J**E
cheap hardware
everything fits good. my only problem is the cheap hardware. 1 bolt the threads all stripped off, and also the heads catch on my pedals. so i have to go to the hardware store and look for a couple better bolts. not a big issue. also the plastic roller wheel seems rather cheap, not sure how long its gonna hold up. for the price i guess it was worth it.
H**S
Sthus bring loaded chain tensioner
Works great I use them on my gas bike motors on every build these things connect to the engine and keep the slack on the chain tight self-adjusting spring loaded I love it
D**F
Best bet for chain issues
Excellent quality and fit, has kept my chain on for many miles. Only issue is bolt and nut that hold arm on loosens up. Needs a longer bolt so a lock washer can be installed. Do not overtighten the chain guide, it will not move and will cause issues with the bearings. Definitely worth the buy and far better quality than the closet door looking hardware that comes standard with the bike engines
Trustpilot
5 days ago
2 weeks ago