DELTA rear sprocket 420 42z

Rear sprocket 420, 42 teeth, DELTA – a toothed wheel on the rear hub. Together with the front sprocket and the chain it forms the final drive: the tooth count decides whether the machine accelerates faster or reaches a higher top speed.

• Marking 420 – it must match your chain's marking, otherwise the teeth will not match its pitch
• 42 teeth – that is how many were counted on the sprocket itself
• The drawing marks four dimensions: outer diameter 175 mm, and in the middle section 70, 54 and 49,50 mm – which measurement is which is not explained in the drawing
• Before ordering, measure your sprocket's central bore and the mounting-hole circle – both must match
• Replace all three parts together – a new chain wears out quickly on worn teeth and stretches again
• You will find other sprockets in the same category, and chains and joining links in the "Chains" category

We write only what we know. Which DELTA model it is meant for, the maker did not state. Before ordering, copy the marking off your chain's side plate, count the teeth on the old sprocket and measure the mounting-hole circle and the central bore — we will check it before you order.

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