The Massi Narrow Wide Comp Shimano (104)plate gives us perfect operation and chain alignment. Available in three sizes 30t, 32t and 34t. Compatible with Shimano 9.10 and 11 speed. It is made of 7075 aluminum and has a diameter of 104. Weight: 37 grams.
MASSI has been developing a wide range of racing products and riding its bikes by hand since 1934, although they did not go on the market until the late 1970s.