Shimano
Shimano R203P/S Disc Brake Adaptor for 203mm Rotor, 74mm Caliper, 51mm Frame
MPN: ISMMAR203PSA · UPC: 689228108813
$14.00
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🏪 Free pickup: 26 Essex St (Rear), Andover MA · 978-270-4895
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Shimano Disc Brake Adaptors allow the use of different sized rotors to your frame or fork.
- ✓ For 74mm caliper on 51mm frame, using 203mm rotor
- ✓ Includes mounting hardware
| Brake Caliper Type | Post Mount |
| Weight | 21 |
| Mount | Rotor Size | Rear IS | 203 Rotor |
Bike Size Guide
| Size | Rider Height | Inseam |
|---|---|---|
| XS / 47-49cm | 5'0" – 5'3" | 27" – 29" |
| S / 51-52cm | 5'3" – 5'6" | 29" – 31" |
| M / 54-55cm | 5'6" – 5'9" | 31" – 33" |
| L / 56-58cm | 5'9" – 6'0" | 33" – 35" |
| XL / 59-61cm | 6'0" – 6'3" | 35" – 37" |
💡 This is a general guide. SOTO Cycles offers FREE basic bike fitting with every new bike purchased and picked up locally — we'll make sure your bike fits perfectly.
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$14.00
In Stock — Ready to Ship