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Help me develop parts list for Di2

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Help me develop parts list for Di2

Old 01-10-21, 08:57 PM
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Lrdchaos
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Help me develop parts list for Di2

Settled on a di2 upgrade for my 2019 Giant advanced pro. It currently has a full Ultegra 8000 gear set and hydraulic disc brake.

I know Iíll need 8070 shifters and a front and rear derailer. The rear cassette is currently an 11-30, which I donít plan to change, can I run or short or do you recommend a medium length derailer? Other than cables and batteries what else will I need? Do you recommend seat post batteries or bars?
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Old 01-10-21, 09:17 PM
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I recommend the longest cage you can. Never limit yourself to the edge have a little extra space. I use a seatpost battery on mine. I would also make sure you have the proper junction boxes A+B for the A junction I would go bar end for cleanliness but you will need the Y cable for it. I would also recommend longer cables rather than shorter ones.
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Old 01-11-21, 08:23 AM
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Pretty much as above. Seat post battery is my preferred and to be fair Iím not even sure what other is even offered anymore.

For your A junction box I would recommend the stem
mount for ease but if you donít mind doing some bar drilling then go bar end, and add the y harness. The A Junction also used to offer both a 3 or a 5 plug. Not sure if this is still the case but if so I preferred the 5 for growth options (but again I think things have changed with additional ports being added to the levers).

I also have always wrapped my B Junction in a little bubble wrap before placing in down tube to avoid any rattling.

make sure you have any grommets needed for where the wires enter or exit the frame. Shimano has a couple of different sizes that should work, your bike manufacturer may also offer a kit of some type.

have fun!
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Old 01-11-21, 11:02 AM
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Sy Reene
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Originally Posted by Lrdchaos View Post
Settled on a di2 upgrade for my 2019 Giant advanced pro. It currently has a full Ultegra 8000 gear set and hydraulic disc brake.

I know Iíll need 8070 shifters and a front and rear derailer. The rear cassette is currently an 11-30, which I donít plan to change, can I run or short or do you recommend a medium length derailer? Other than cables and batteries what else will I need? Do you recommend seat post batteries or bars?
Can be used as a reference, or I suppose to buy from:

https://www.texascyclesport.com/shim...ed-time-offer/
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