Dura Ace Di2 9170 vs SRAM ETAP HRD weight

Discuss light weight issues concerning road bikes & parts.
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sparklywheels
Posts: 36
Joined: Fri Dec 07, 2018 6:12 pm

by sparklywheels

Hi guys, my bike has Ultegra 8020 currently and I was wondering that if I were to upgrade, how much weight difference would there be between ETAP and Di2. I’m leaning towards Di2 as I constantly miss shift Di2 (yeah, I’m clumsy). Thanks in advance!

Cemicar
Posts: 145
Joined: Mon Aug 21, 2017 7:40 am

by Cemicar

The whitepaper for the latest Madon is a good resource, as Trek provides actual weights.

http://trek.scene7.com/is/content/TrekB ... _EN-GB.pdf

by Weenie


sparklywheels
Posts: 36
Joined: Fri Dec 07, 2018 6:12 pm

by sparklywheels

Cemicar wrote:
Sat Jan 05, 2019 6:14 am
The whitepaper for the latest Madon is a good resource, as Trek provides actual weights.

http://trek.scene7.com/is/content/TrekB ... _EN-GB.pdf
Pretty much a wash then. Thanks! :D

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Klaster_1
Posts: 775
Joined: Mon Aug 15, 2016 10:25 am
Location: Russia

by Klaster_1

sparklywheels wrote:
Sat Jan 05, 2019 6:31 am
Pretty much a wash then. Thanks! :D
Di2 seems to be lighter by ~70g (2502g eTAP vs 2428g Di2). To get the lightest, you'd have to mix either eTap or Di2 with third party components. For example, my equivalent setup weighs in at ~1930g, still with some upgrades/tuning to go.

jencvo
Posts: 80
Joined: Thu Oct 18, 2018 12:01 pm

by jencvo

Klaster_1 wrote:
Sat Jan 05, 2019 7:40 am
sparklywheels wrote:
Sat Jan 05, 2019 6:31 am
Pretty much a wash then. Thanks! :D
Di2 seems to be lighter by ~70g (2502g eTAP vs 2428g Di2). To get the lightest, you'd have to mix either eTap or Di2 with third party components. For example, my equivalent setup weighs in at ~1930g, still with some upgrades/tuning to go.
What 3rd party parts did you use to get the weight down so much? My biggest issue is the cassette, finding anything lighter than Ultegra without price being upward of 3-4x.

by Weenie


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Klaster_1
Posts: 775
Joined: Mon Aug 15, 2016 10:25 am
Location: Russia

by Klaster_1

jencvo wrote:
Wed Jan 09, 2019 2:22 am
What 3rd party parts did you use to get the weight down so much? My biggest issue is the cassette, finding anything lighter than Ultegra without price being upward of 3-4x.
Check out my build list, it does not include all the parts I used in calculations, but those can be found in extra "upgrade" sheets (Powercordz, ST-R9120, J&L BB). You can try second hand SRAM XG-1190, those can be found in deals subforum for reasonable price from time to time.

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