Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Blog NEW Galleries NEW FAQ Contact About Impressum
It is currently Thu Sep 21, 2017 8:00 am

All times are UTC+01:00





Post new topic  Reply to topic  [ 8 posts ] 
Author Message
PostPosted: Tue Jul 11, 2017 2:50 pm 
Offline

Joined: Mon Jun 05, 2017 2:10 pm
Posts: 14
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.


Top
   
Posted: Tue Jul 11, 2017 2:50 pm 


Top
   
 
PostPosted: Tue Jul 11, 2017 3:26 pm 
Offline

Joined: Wed Jan 22, 2014 11:48 am
Posts: 2316
Location: Vienna Austria
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!


Top
   
PostPosted: Sat Jul 15, 2017 7:04 pm 
Offline

Joined: Sat May 21, 2016 12:59 pm
Posts: 298
Shift cable and housing for Sram adds 50g

_________________
'


Top
   
PostPosted: Sun Jul 16, 2017 2:02 am 
Offline

Joined: Fri Jan 04, 2013 7:17 pm
Posts: 217
Location: UT/TX/PA, USA
Good info. I wonder what the delta would be between XTR/RS785 Di2 (1x11) and Force 1.


Top
   
PostPosted: Sun Jul 16, 2017 7:17 am 
Offline

Joined: Mon Jul 26, 2004 1:06 pm
Posts: 1072
Location: Melbourne, Australia
ooo wrote:
Shift cable and housing for Sram adds 50g


He included that in his 'rear brake' comparison. Well at least the inner cable. Not sure if the outer is included.

_________________
Grover's Grumblings
Grover's Garage


Top
   
PostPosted: Sun Jul 16, 2017 9:07 pm 
Offline

Joined: Mon Oct 15, 2007 9:28 pm
Posts: 1337
Why not use XTR 9000 calipers? They are lighter-


Top
   
PostPosted: Mon Jul 17, 2017 5:07 pm 
Offline

Joined: Mon Jun 05, 2017 2:10 pm
Posts: 14
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.


Top
   
PostPosted: Mon Jul 17, 2017 6:48 pm 
Offline

Joined: Fri Jan 04, 2013 7:17 pm
Posts: 217
Location: UT/TX/PA, USA
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.


Top
   
Posted: Mon Jul 17, 2017 6:48 pm 


Top
   
 
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 8 posts ] 

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. SRAM Force left crank arm weight ?

in Road

Xico

5

435

Thu Feb 09, 2017 2:10 pm

darnellrm View the latest post

There are no new unread posts for this topic. Large sram force shifter weight difference - how come?

in Road

alcatraz

9

967

Sun Oct 09, 2016 12:40 pm

alcatraz View the latest post

There are no new unread posts for this topic. FSA K-Force light crankset with Shimano BB?

in Road

ave

1

394

Tue Apr 04, 2017 11:14 pm

MisterMuncher View the latest post

There are no new unread posts for this topic. Help with Sram Red/Force RD

in Road

Hardstyle

0

174

Mon Jul 10, 2017 12:04 am

Hardstyle View the latest post

There are no new unread posts for this topic. Attachment(s) first weight weenie bike

in Introduce Yourself / Gallery - Please use metric weights.

ericmerg1

9

2071

Fri Dec 02, 2016 1:58 pm

ericmerg1 View the latest post


All times are UTC+01:00


Who is online

Users browsing this forum: No registered users and 4 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Limited