Shimano Disc Brake Adaptors allow the use of different sized rotors to your frame or fork.
- For 74mm caliper on 51mm frame, using 180mm rotor
- Includes mounting hardware
Manufacturer Shimano
Manufacturer Part Number ISMMA90R180PS
UPC 689228430440
Model Shimano Disc Brake Adapter
Disc Brake Adaptor Style 51mm I.S.
Disc Brake Adaptor Type Rear
Disc Brake Adaptor Size 180mm
Brake Caliper Type
Post Mount
Mount | Rotor Size
Rear IS | 180 Rotor
Usually Ships in 2-3 DaysPlease Note: This product is usually available for shipment within 2 business days for orders placed before 3pm EST, Monday through Friday or within 3 business days for orders placed after 3pm EST, Monday through Friday.
Contact for in-store availability, not all items are available for immediate pickup. If we are unable to meet these time frames due the rapid changes in revolving inventory you will be contacted via email. We do not partial ship orders, the delivery time of your order is determined by the item on your order with the longest lead time. If your order is time sensitive we encourage you to
contact us for up to the minute product availability and ship times to verify that we can accommodate your needs. Refer to our
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