model:AF12-306/304/321/307AAA
Inquiry
| Chainwheel: | |
| Teeth:306:42/32/24(10S) 304:44/32/22(9S) 321:48/36/26(9S) 307:48/38/28(8/9S) | |
| Material:Alloy:A,Steel:S Option | |
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| 4Arm/Alloy Forged/BCD104/64 | |
| Length: 170,175mm | |
| Chainline:50mm | |
| BB:ISIS(118mm) | |
| BB:JIS(113mm) |
