This page is designed for comparisons and will be best viewed on a wide screen.
| Series | XTR | STX-RC | NEXAVE | Alivio | Acera X | Altus C90 | Tourney | Non Series | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feature | FC-M951 | FC-M951-HG | FC-M951-DH | FC-M739 | FC-M739-5arm | FC-M569 | FC-M569-5arm | FC-MC40 | FC-T400 | FC-T401 | FC-MC34-B | FC-MC16 | FC-M291 | FC-CT92 | FC-TY30 | FC-C500-I |
| 4-arm | X | X | X | X | X | X | ||||||||||
| Chain ring | 46-34-24T | 46(48)-36-26T | 46T, 48T, 60T, 62T, 64T | 42(44)-32-22T | 42(44)-32-22T | 42-32-22T | 42-32-22T | 42-32-22T | 42-32-22T | 48-38-28-T | 42-32-22T | 42-34-24T | 42-34-24T | 42-34-24T | 48-38-28-T | 48-38-28-T |
| Chain Type | IG | HG | IG | IG | IG | IG | IG | IG | IG | IG | IG | IG | HG | HG | HG/UG | IG |
| PCD (mm) | 112/68(mm) | 110/74(mm) | 110mm | 104/64(mm) | 94/58(mm) | 104/64(mm) | 94/58(mm) | 104/64(mm) | 104/64(mm) | 79mm | 94/58(mm) | 67mm | Riveted | Riveted | Riveted | 79mm |
| Chain guard available | Available | Available | Available | Available | Available | Available | Available | Available | Available | Available | Available | Available | ||||
| Bottom bracket | BB-M950 | BB-M950 | BB-M950 | BB-UN72(E) | BB-UN72(E) | BB-UN52(E) | BB-UN52(E) | BB-UN52(E) | BB-UN52(E) | BB-UN52(E) | BB-LP26(E) | BB-LP26 | BB-LP26 | BB-CT91 | BB-TY30 | BB-CS12 |
| Crank Arm Lengths Available | ||||||||||||||||
| 165mm | X | X | X | X | X | |||||||||||
| 167.5mm | X | X | X | X | X | |||||||||||
| 170mm | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
| 172.5mm | X | X | X | X | X | |||||||||||
| 175mm | X | X | X | X | X | X | X | X | X | X | X | X | X | |||
| 177.5mm | X | X | X | X | X | |||||||||||
| 180mm | X | X | X | X | X | |||||||||||
| Chain line 47.5mm | 112.5mm | 112.5mm | 112.5mm | MM110(E) | MM110(D) | MM110 (E) | MM110(E) | MM110(E) | MM110(E) | MM110(E) | MM110(E) | MM110 | MM110 | YL116 | D-NL | D-NL |
| Chain line 50mm | 116mm | 116mm | 116mm | LL113(E) | LL113(E) | LL113(E) | LL113(E) | LL113(E) | LL113(E) | LL113(E) | LL113(-E) | LL113 | LL113 | AL121 | ||
| Crank Arm | Aluminum - Painted | Aluminum - Painted | Aluminum - Painted | Aluminum - Anodized | Aluminum - Anodized | Aluminum - Polished | Aluminum - Polished | Aluminum - Polished | Aluminum - Polished | Aluminum - Polished | Aluminum - Polished | Aluminum - Polished | Aluminum - Polished | Aluminum - Polished | Aluminum - Polished | Aluminum - Polished |
| Spider Arm | Aluminum - Anodized | Aluminum - Anodized | Aluminum - Anodized | Aluminum - Anodized | Aluminum - Polished | Aluminum - Polished | Aluminum - Polished | Aluminum - Polished | Aluminum - Polished | |||||||
| Top | Aluminum - Anodized | Aluminum - Anodized | Aluminum - Anodized | Aluminum - Anodized | Aluminum - Anodized | Aluminum - Anodized | Aluminum - Anodized | Aluminum - Polished | Aluminum - Anodized | Aluminum - Painted | Steel - Painted | Steel - Painted | Steel - Painted | Steel - Painted | Steel - Painted | Steel - Painted |
| Middle | Aluminum - Special plated | Aluminum - Anodized | Aluminum - Special plated` | Aluminum - Special plated | Aluminum - Special plated | Aluminum - Special plated | Aluminum - Special plated | Steel - Pearl Bright | Steel - Painted | Steel - Pearl Bright | Steel - Painted | Steel - Painted | Steel - Painted | Steel - Painted | Steel - Painted | |
| Low | Aluminum - Special plated | Aluminum - Anodized | Aluminum - Special plated | Steel - Chrome plated | Aluminum - Special plated | Steel - Chrome plated | Steel - Chrome plated | Steel - Pearl Bright | Steel - Pearl Bright | Steel - Pearl Bright | Steel - Painted | Steel - Painted | Steel - Painted | Steel - Painted | Steel - Painted | |
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