The two pistons from Wossner arrived yesterday. 2000-2003 Suzuki RM125 pistons.
The piston, single ring, circlips, small end bearing and pin weigh 165 grams
The standard Honda two ring piston kit weighs 195 grams.
This is a saving of 30 grams per cylinder, about 15% less than standard.
The Wossner piston and single ring weighs 123 grams.
The Honda piston and two rings weigh 149 grams.
The deck height of the Wossner piston is 22.0mm
The deck height of the Honda piston is 22.5 - 22.6mm
The dome angle of the Wossner piston is about 10 degrees
The dome angle of the Honda piston is about 8.5 degrees.
The piston, single ring, circlips, small end bearing and pin weigh 165 grams
The standard Honda two ring piston kit weighs 195 grams.
This is a saving of 30 grams per cylinder, about 15% less than standard.
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| Wossner Kit. This should say 165 grams. The bearing here is wrong: 2g heavier than it should be. |
The 53.97 diameter Wossner piston is part number 8061DC and is sold for around USD$105.
Note that the small end bearing is not included in this kit from Wossner.
Also note the Teflon coating. Well at least I assume it is Teflon?
The Wossner gudgeon pin weighs 32 grams.
The Honda gudgeon pin weighs 36 grams.
The Wossner piston and single ring weighs 123 grams.
The Honda piston and two rings weigh 149 grams.
The deck height of the Wossner piston is 22.0mm
The deck height of the Honda piston is 22.5 - 22.6mm
The dome angle of the Wossner piston is about 10 degrees
The dome angle of the Honda piston is about 8.5 degrees.
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| Std Honda piston dome angle |
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