Shimano C2 Flat Mount Caliper Bolt 20/25/30mm

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The Shimano C2 Flat Mount Caliper Fixing Bolt is a genuine replacement mounting bolt for compatible Shimano Flat Mount hydraulic disc brake calipers.
Available in different lengths to accommodate different rear frame mounting thicknesses. Selecting the correct bolt is important for safe and secure brake caliper installation.
These C2 bolts are compatible with Shimano Flat Mount brake calipers including Dura-Ace BR-R9270, Ultegra BR-R8170 and 105 BR-R7170. Compatibility also extends to selected other Shimano Flat Mount calipers.
Please select the bolt according to the required frame mounting thickness. Shimano specifies a tightening torque of 6–8 Nm for these C2 fixing bolts.

Product: C2 Flat Mount Brake Caliper Fixing Bolt
Material: Steel
Thread: M5
Size: 20mm / 25mm / 30mm
Tool: 4mm Hex Key
Tightening Torque: 6–8 Nm
Compatibility: Shimano BR-R9270 / BR-R8170 / BR-R7170 and compatible Shimano Flat Mount brake calipers
Application: Rear Flat Mount Disc Brake Caliper Installation
Colour: Black
Variants
20mm Frame Thickness
25mm Frame Thickness
30mm Frame Thickness
For your Shopify backend, I verified the three EANs against Shimano's own packaging data and cross-checked the individual sizes: