Rear sprocket 420 38T D51mm

Rear sprocket 420, 38 teeth, D 51 mm – a toothed wheel on the rear hub. Together with the front sprocket and the chain it forms the drivetrain: the tooth count decides whether the machine accelerates faster or runs faster on a straight.

• The 420 marking must match the marking on your chain, otherwise the teeth will not match its pitch
• 38 teeth and 158 mm outer diameter – that is how the drawing reads: "38z Ø 158mm"
• Central bore Ø 51 mm – the drawing's arrow from this figure points straight to the central hole
• Four Ø 9 mm mounting holes: 59 mm between adjacent ones, 83 mm between opposite ones
• Replace all three parts together – on worn teeth a new chain wears out quickly and stretches again
• The closest tooth counts in the 420 line in the listing – 37 teeth (three sprockets: D 48, D 54 and D 76 mm) and 48 teeth (D 48 mm)
• You will find other sprockets in the "Sprockets" category, and chains and their joining links in the "Chains" category

To be straight with you: before ordering, copy the marking from your chain's side plate, count the teeth on the old sprocket, and measure the bolt circle of the mounting holes and the central bore – we will check it before you order.

24-month warranty · tel. +370 685 777 56