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The Shimano Inner Sole for SH-R/M300 is a replacement insole designed specifically for Shimano’s high-performance SH-R and SH-M300 cycling shoes. Over time, original insoles can compress, lose support, or become worn, reducing comfort and efficiency on the bike. Swapping in a fresh Shimano inner sole helps restore the snug, supportive feel your shoes had when they were new, improving comfort on long rides and maintaining a secure connection to your pedals.
Engineered to work seamlessly with the shaping of Shimano’s R and M300 series shoes, this inner sole supports the foot where cyclists need it most, helping to reduce hot spots and pressure points. It is ideal for riders who log many training hours, race regularly, or simply want to extend the life and performance of their favorite shoes. Easy to install and remove, it’s a simple upgrade that can make a noticeable difference in fit, comfort, and overall riding experience without the need to replace the entire shoe.
