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Direct mount narrow-wide chainring for Shimano M9100
this gives superior strength
4 way adjustable (LSC-HSC-LSR-HBC)
and other bikes around it
On a social ride this means getting dropped by your friends
EXT C75 Superlight V2 MTB Spring Spacer Direct mount narrow-wide chainring forC75 (up to 75mm stroke) Superlight V2 Mountain Bike Shock Spring, able to fit other brands with adaptors New improved material (proprietary super light design) Extreme Linear Ratio Hard Epoxy Coating Internal Diameter: 38. 5 mm Up to 30% weight reduction compared with other "normal" steel springs and the previous Ext Superlight springs Developed in our automotive racing programs First dedicated to fine tuning with 25lbs increments Adaptable for all
