| Model NO.: | Shimano dura ace di 2 electronic shifting group55378 |
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| Customization: | Available Customized Request |
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The full groupset includes: 1. DI2 STI 10 SPEED SHIFTERS 2. DI2 FRONT DERAILLEUR- The "brains" of the system 3. DI2 REAR DERAILLEUR 4. CRANK 53 X 39 (Who needs a compact anyway ? ) 172.5 MM LENGTH. 5. Bottom Bracket (7900 , BSA thread only) 6. 7901 10 SPEED Chain 7. 11 x 25 10 Speed Cassette 8. Front/Rear Brakes- Pair 9. Battery (SM-BTR1-A) Li-Ion battery 10. Charger Unit (SM-BCR1) and power cord. 11. STI Cable- external ; spec m - 830 mm
