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piston identification

  1. S

    Identify high compression pistons?

    How does one identify the 9.5 R100 pistons vs the standard US type lower compression versions. Say...if a bike was represented as having the 9.5's...how would I know when I pulled the top end? Sent from my iPhone using Tapatalk
    • syvrider
    • Thread
    • high compression piston piston identification
    • Replies: 12
    • Forum: Airheads
  2. AnnapolisAirhead

    Piston Identification

    I'm thinking that these are high compression pistons, but want to post a picture and ask around. I have two sets. This picture shows one of each. The left one is from 1980ish?? and newer that uses a circlip to hold the wrist pin in place. The one on the right is the older, PITA spring clippy...
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