428H O-Ring Motorcycle Sprocket Chain Kit 15T Front 45T Rear 116 Links for Suzuki GN125
428H O-Ring Sealed Drive Chain
,Hardened 45T Rear Sprocket
,GN125 Direct Bolt-On Fitment
GN125 Motorcycle Sprocket & Chain Kit — 428H O-Ring Drive Set
Complete bolt-on drive kit for Suzuki GN125 / GN125H commuter motorcycles. The kit pairs a 15T front sprocket and a 45T rear sprocket with a 428H O-Ring sealed chain, so the whole drive line is replaced in one job and wears in together instead of fighting an old chain.
Why riders and workshops choose this kit
- O-Ring sealed 428H chain — factory-loaded grease stays inside the rollers, cutting chain stretch and lubrication intervals on dusty or rainy roads.
- Hardened 45# carbon steel sprockets — through-hardened teeth and induction-hardened surface resist hooking and keep the original 15T / 45T ratio.
- Matched ratio, no guesswork — front, rear and chain length are pre-checked for the GN125 swingarm, so no link removal is needed on a stock bike.
- Zinc-plated finish — salt-spray tested plating keeps the sprockets and side plates from rusting between services.
Technical specification
| Item | Value |
|---|---|
| Chain type | 428H O-Ring, 120 links, clip-type master link |
| Front sprocket | 15T, 20mm shaft bore, 6-spline |
| Rear sprocket | 45T, 4-bolt mounting, PCD 68mm |
| Sprocket material | 45# carbon steel, through hardened HRC 38-42 |
| Surface treatment | Zinc plated, white rust 48h salt spray |
| Fitment | Suzuki GN125, GN125H, GN125-2 (2001 onwards) |
Application notes
Recommended for daily commuting, courier fleets and rental bikes running 125cc four-stroke single engines. Replace the sprockets and chain as a set — a new chain on worn teeth will stretch again within a few thousand kilometres.
Packing and ordering
Each kit is packed in a branded colour box with the chain coiled, sprockets bagged and a master link in a separate sleeve, then 10 kits per export carton.
YAYE — motorcycle drive and engine parts manufacturer