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When a broken or worn chain link sidelines your go-kart, mini bike, or conveyor system, every minute of downtime counts. This 10-pack of #25 roller chain connecting links is designed for DIYers, hobbyists, and light-industrial users who need a dependable, ready-to-install solution without hunting for individual pieces.
Each connecting link is a full link (also called a master link) engineered to match the #25 / 04C roller chain standard. The link body is typically constructed from carbon steel with a zinc or nickel-plated finish for corrosion resistance. Chain pitch is 6.35 mm (1/4 in), with an inner width of approximately 3.18 mm (0.125 in) and a roller diameter of approximately 3.30 mm (0.130 in). The pack contains 10 individual connecting links.
Typical use cases include repairing or extending #25 roller chains on go-karts and mini bikes, replacing worn master links on small conveyor systems, and maintaining chain-driven garden equipment or power transmission assemblies where 04C chain connecting links for DIY repair are required.
| Chain Standard | #25 / 04C |
|---|---|
| Chain Pitch | 6.35 mm (1/4 in) |
| Inner Width | Approx. 3.18 mm (0.125 in) |
| Roller Diameter | Approx. 3.30 mm (0.130 in) |
| Link Type | Full Link (Master Link) with spring clip |
| Material | Carbon steel |
| Finish | Zinc / nickel plated |
| Quantity per Pack | 10 pieces |
| Working Load | See variant options |
| Breaking Load | See variant options |
Yes — this link is designed specifically for #25 and 04C roller chains with a 6.35 mm (1/4 in) pitch. To confirm compatibility, measure the distance between the centers of two adjacent pins on your existing chain. If it measures 6.35 mm, this link will fit.
This is a full connecting link (also called a master link). It replaces one complete link in the chain and maintains the original chain pitch. Half links are used to fine-tune chain length by half a pitch and are a separate product.
The link is manufactured from carbon steel to match the tensile strength rating of standard #25 roller chain. Exact working load and breaking load figures depend on the specific batch — please contact us to confirm if your application has strict load requirements.
The zinc or nickel-plated finish provides moderate corrosion resistance suitable for sheltered outdoor use and typical workshop environments. For prolonged exposure to moisture, salt spray, or chemicals, we recommend applying a chain lubricant regularly or considering a stainless steel chain solution.
No special tools are required. The spring clip retainer can be installed and removed with needle-nose pliers or a flathead screwdriver. Ensure the open end of the clip faces away from the direction of chain travel to prevent accidental disengagement.
Connecting links are small consumable parts that wear or lose their spring clip over time. Having a 10-pack on hand means you can make immediate repairs without waiting for a reorder — ideal for go-kart tracks, workshops, or anyone maintaining multiple chain-driven machines.
No. Bicycle chains use a different pitch standard (typically 12.7 mm / 1/2 in) and a narrower inner width. This link is designed for #25 / 04C roller chains used in power transmission and light machinery, not bicycle drivetrains.
