THE most neglected and least checked part of the bar, chain sprocket combo. Folks will spend £s on new bars and chains and their worn out drive sprocket will wear them 3-5 times as fast. Heat build up/chain de-rail/peened drive links/nose sprocket blow outs can often be attributed to this part. How many times have we heard ‘but the saw is still pretty new?’ – does not matter – if that drive sprocket is worn it is worn so take the time to check it and change it. Also learn the differences between a spur sprocket and rim sprocket – click here for this]
Husqvarna have made the sprocket choice for the 550XP/560XP harder by changing the design between the MkI and MkII saws… add to that some folks like to run 3/8 and.. anyway:
Find the 575 26 10-05 Husqvarna .325 x7 tooth Rim and Sprocket Fits 550XP MkI and 560XPs MkI click here
Find the 596 21 83-01 Husqvarna .325 x7 tooth Rim and Sprocket Fits 550XP MkII ONLY click here
Find the 575 26 10-07 Husqvarna .325 x7 tooth Rim and Sprocket Fits 560XP MkII ONLY click here
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![11220071000 Stihl 3/8 x7 tooth Rim and Sprocket [Stihl 064, MS640, 065, MS650, 066, MS066 Magnum, MS660, MS661]](https://www.chainsawbars.co.uk/content/uploads/11220071000-Stihl-38-x7-tooth-Rim-and-Sprocket-Stihl-064-MS640-065-MS650-066-MS066-Magnum-MS660-MS661.jpg)
![11416402001 Stihl Spur Sprocket .325 x7 tooth [Stihl MS261, MS271, MS281, 291]](https://www.chainsawbars.co.uk/content/uploads/11416402001-Stihl-Spur-Sprocket-.325-x7-tooth-Stihl-MS261-MS271-MS281-291.jpg)