Weight Weenie Showdown: Shimano Di2 vs. SRAM Force 1
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I had been trying to sell a custom-built 2015 Niner RLT 9 with a top spec Di2 setup (details here for the curious). However, after a couple months of little action, I got a bite but the buyer wanted the Force 1 groupset on my 2016 Niner BSB 9 RDO. I didn't really want to keep the uber fancy Di2 stuff, but I also don't need two cyclocross bikes, so I obliged and set about swapping everything around. I weighed the components, and here I present the findings:
Derailleurs: (Winner: Force 1 by 29g)
Force 1 Rear Derailleur: 262g
XTR Di2 Rear Derailleur (long cage): 291g
Front Brake: (Winner: Force 1 by 118g)
Force 1 (includes Force 1 calipers+ Force 1 brifters+hose/oil+160mm front brake adapter): 334g
R/S785 (R785 brifters+RS785 calipers+hose/oil+160mm front brake adapter): 452g
Rear Brake: (Draw - negligible difference)
Force 1 (calipers+brifters+shifter cable+hose/oil): 457g
R/S785 (calipers+brifters+Di2 cable+hose/oil): 452g
Di2 Parts: (Well, duh!)
Di2 (includes Junction A, Junction B, Rear Derailleur Wire, Battery Wire, Down Tube Wire): 98g
Force 1: 0g
Conclusion:
Force 1 mini group is 240g (0.53 lbs) lighter than a comparable Shimano Di2 group.
Bonus Crankset Comparisons:
Dura-Ace 175mm crankarms: 512g
AbsoluteBLACK 38T oval: 63g
Wheels MFG PF30>24 BB: 155g
Force 1 175mm carbon crankarms: 464g
SRAM 42T X-sync: 75g
Quarq Power Meter spider: 154g (direct-mount chainrings save a lot of weight!)
WheelsMFG PF30 BB: 108g
The Force 1 groupset worked perfectly for me, so I somewhat regret letting it go, especially since the weight penalty is so much more than I expected.
Derailleurs: (Winner: Force 1 by 29g)
Force 1 Rear Derailleur: 262g
XTR Di2 Rear Derailleur (long cage): 291g
Front Brake: (Winner: Force 1 by 118g)
Force 1 (includes Force 1 calipers+ Force 1 brifters+hose/oil+160mm front brake adapter): 334g
R/S785 (R785 brifters+RS785 calipers+hose/oil+160mm front brake adapter): 452g
Rear Brake: (Draw - negligible difference)
Force 1 (calipers+brifters+shifter cable+hose/oil): 457g
R/S785 (calipers+brifters+Di2 cable+hose/oil): 452g
Di2 Parts: (Well, duh!)
Di2 (includes Junction A, Junction B, Rear Derailleur Wire, Battery Wire, Down Tube Wire): 98g
Force 1: 0g
Conclusion:
Force 1 mini group is 240g (0.53 lbs) lighter than a comparable Shimano Di2 group.
Bonus Crankset Comparisons:
Dura-Ace 175mm crankarms: 512g
AbsoluteBLACK 38T oval: 63g
Wheels MFG PF30>24 BB: 155g
Force 1 175mm carbon crankarms: 464g
SRAM 42T X-sync: 75g
Quarq Power Meter spider: 154g (direct-mount chainrings save a lot of weight!)
WheelsMFG PF30 BB: 108g
The Force 1 groupset worked perfectly for me, so I somewhat regret letting it go, especially since the weight penalty is so much more than I expected.
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Thanks, interesting facts!
I have a Force 1 crankset, but with an 80g direct mount Garbaruk ring and running in an adapted 68g Shimano BB
Didn't know the arms were relatively light!
I have a Force 1 crankset, but with an 80g direct mount Garbaruk ring and running in an adapted 68g Shimano BB
Didn't know the arms were relatively light!
ooo wrote:Shift cable and housing for Sram adds 50g
Shift cable and housings were included in the weights, as well as all the parts and cables required for Di2. It's a complete group comparison.
justaute wrote:Good info. I wonder what the delta would be between XTR/RS785 Di2 (1x11) and Force 1.
This was a comparison between XTR/RS785 in a 1x11 vs Force 1. Do you mean XTR vs. RS785?
boots2000 wrote:Why not use XTR 9000 calipers? They are lighter-
I was planning to go with the 9000s (or some other XTR model even), but I got a good deal on the RS785 calipers. The weight savings wasn't worth the cost to me, plus I kind of like having the matching calipers and brifters.
Bhaalgorn wrote:justaute wrote:Good info. I wonder what the delta would be between XTR/RS785 Di2 (1x11) and Force 1.
This was a comparison between XTR/RS785 in a 1x11 vs Force 1. Do you mean XTR vs. RS785?
My bad. For whatever reason, I thought you were running 2x11. Nice work.
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