Shimano 5800 component weights

DKay

Received my 5800 groupset today, so decided to do the geeky thing and weigh each component, as these figures don't seem to be available anywhere.

Crank 170mm 50-34t (DS) - 532g
Crank 170mm (NDS) - 205g
Brake caliper (inc. pads) - 197g
Brake caliper (inc. pads) - 193g
Shifter (LH) - 245g
Shifter (RH) - 245g
Cassette (11 -28t) - 276g
Chain (uncut) - 265g
Bottom bracket - 77g
Front derailleur (braise-on) - 88g
Rear derailleur (SS) - 230g

Total (excluding cables) - 2553g (5.63lbs)

The crankset is pretty interesting. To save costs, the big ring is solid instead of a two-piece hollow construction as found on Ultegra and above, but the rear face is hollowed out to reduce the weight. Trick looks but will accumulate gunk. Looks to be a big step-up in stiffness and build from the old 105 chainset. It also only weighs around 25g more than an equivalent 6750 Ultegra chainset too.

DiscoBoy

Thanks, it is useful to have this information

Are you going to submit them to here?
http://weightweenies.starbike.com/listings.php

It is interesting that the brakes are slightly heavier than 5700.

I reckon you're right about those chainrings being filth central, though...

DKay

DiscoBoy wrote:

Thanks, it is useful to have this information

Are you going to submit them to here?
http://weightweenies.starbike.com/listings.php

It is interesting that the brakes are slightly heavier than 5700.

I reckon you're right about those chainrings being filth central, though...

Just about to submit the figures to WW.

Grill

DiscoBoy wrote:

Thanks, it is useful to have this information

Are you going to submit them to here?
http://weightweenies.starbike.com/listings.php

It is interesting that the brakes are slightly heavier than 5700.

I reckon you're right about those chainrings being filth central, though...

Pretty sure 9000 brakes are heavier than 7900...

sloppyschleckonds

Brilliant, try tying a brick to the underside of your saddle to balance things out.

holiver

I am sure a lot of people will be indebted to you OP for doing this. Well done!

adamfo

Good post from the OP.

I weighed the Ultegra 6800 compact crankset at 489g for the 172.5 version
NDS arm 197g
Chain 266g
RD 169g
FD 87g
FB 172g
RB 170g
Lever 212g

Crank pictures here

viewtopic.php?f=40013&t=12947694

DKay

holiver wrote:

I am sure a lot of people will be indebted to you OP for doing this. Well done!

My pleasure. I had an hour to kill and a brand new 5800 groupset laid out in my front room.

What's a nerd to do?

DKay

adamfo wrote:

Good post from the OP.

I weighed the Ultegra 6800 compact crankset at 489g for the 172.5 version

Chain 266g
RD 169g
FD 87g
FB 172g
RB 170g
Lever 212g

Crank pictures here

viewtopic.php?f=40013&t=12947694

So it looks like the majority of the Ultegra weight savings are in the shifters and surprisingly, the rear derailleur which is 25% lighter than 105. I can understand the shifters being lighter with the carbon levers, but the rear derailleur is intriguing, as both components looks pretty much identical and use very similar materials.

thefd

I got mine also - now fitted. Did you get two little (and I mean little) metal bits in their own separate bag with the levers? Any idea what they are for?

IanRCarter

Still waiting for mine, stupidly ordered along with a frame from Ribble, so I've got to wait until that's ready for dispatch (why does it take so long to put an 'in stock' frame in a box?).

Jon_1976

the 2 metal plates are for the seat tube. you're supposed to stick one on the tube so the screw on the front mech can push against it.

thefd

Jon_1976 wrote:

the 2 metal plates are for the seat tube. you're supposed to stick one on the tube so the screw on the front mech can push against it.

I don't follow...can you explain for a thicky. It is a braze on. What screw on the front mech is pushing on the seat tube?

DKay

http://forums.roadbikereview.com/compon ... 24780.html

Jon_1976

some pics here http://www.bikerumor.com/2013/03/21/shi ... pressions/


http://si.shimano.com/php/download.php? ... 03-ENG.pdf

adamfo

DKay wrote:

adamfo wrote:

Good post from the OP.

I weighed the Ultegra 6800 compact crankset at 489g for the 172.5 version

Chain 266g
RD 169g
FD 87g
FB 172g
RB 170g
Lever 212g

Crank pictures here

viewtopic.php?f=40013&t=12947694

So it looks like the majority of the Ultegra weight savings are in the shifters and surprisingly, the rear derailleur which is 25% lighter than 105. I can understand the shifters being lighter with the carbon levers, but the rear derailleur is intriguing, as both components looks pretty much identical and use very similar materials.

I wonder if I've transposed the figures...the RD may be 196 ? I don't have it to hand any more.

Something else a bit lighter is the BB which needs a special sized ring to install (included in box)

thefd

Thanks for that. Got the plate on now.

Quick question - if the chain is tight on the derailleur when on the big ring (rubbing), but the limit screw makes no difference is this because I have the tension too tight on the cable?

Jon_1976

whilst in the big ring and smallest sprocket:
push the left hand lever to its fullest extent and hold it there. if there is adequate chain/mech clearance the limit screw is ok.

upon releasing the lever if that clearance disappears, you need more cable tension.

DKay

adamfo wrote:

I wonder if I've transposed the figures...the RD may be 196 ? I don't have it to hand any more.

Something else a bit lighter is the BB which needs a special sized ring to install (included in box)

Possibly, as the difference doesn't make sense otherwise. The 5800 BB also needs the ring adapter for installaton too and it came with my groupset.

adamfo

Shimano's home website has weights. The Ultegra 6800 RD does indeed come in at 195g and the BB 77g

http://cycle.shimano.co.jp/publish/cont ... _road.html

Moonbiker

I can't read japaanese though

rolf_f

adamfo wrote:

I wonder if I've transposed the figures...the RD may be 196 ? I don't have it to hand any more.

That's good. All they need to do now is find another 20g to save and they'll have got it to match the weight of a 1975 Suntour Cyclone rear mech!

adamfo

Don't panic.... this one only weighs 158g. For rich barstaffs only.

http://cycle.shimano.co.jp/publish/cont ... ype-..html

rolf_f

adamfo wrote:

Don't panic.... this one only weighs 158g. For rich barstaffs only.

http://cycle.shimano.co.jp/publish/cont ... ype-..html

Thanks - this is a great relief. I was worried for a moment that Shimano would have failed to have matched the weight of the Suntour mech with the benefit of 39 years more development time but now I see they've been more than equal to the task!

Mind you, unlike the Suntour you still can't remove the chain from the mech without either splitting the chain or dismantling the cage.......

antsmithmk

DKay wrote:

Received my 5800 groupset today, so decided to do the geeky thing and weigh each component, as these figures don't seem to be available anywhere.

Crank 170mm 50-34t (DS) - 532g
Crank 170mm (NDS) - 205g
Brake caliper (inc. pads) - 197g
Brake caliper (inc. pads) - 193g
Shifter (LH) - 245g
Shifter (RH) - 245g
Cassette (11 -28t) - 276g
Chain (uncut) - 265g
Bottom bracket - 77g
Front derailleur (braise-on) - 88g
Rear derailleur (SS) - 230g

Total (excluding cables) - 2553g (5.63lbs)

The crankset is pretty interesting. To save costs, the big ring is solid instead of a two-piece hollow construction as found on Ultegra and above, but the rear face is hollowed out to reduce the weight. Trick looks but will accumulate gunk. Looks to be a big step-up in stiffness and build from the old 105 chainset. It also only weighs around 25g more than an equivalent 6750 Ultegra chainset too.

How much will the road grime in each of those little chambers weigh once it's been out in anger? That is a bizarre design feature!

ChrisB200SX

Beat me to it, will probably still weigh mine at some point though (172.5mm - black). Just for backing up results and showing the difference between the two crank lengths. I suspect the black anodising also makes it a couple of grams heavier

Looks like it's only 136g heavier than the Ultegra set , although that doesn't include the BB. I've left the numbers on my desk at work :roll: but that was with the Ultegra 11-25 cassette, so presumably the difference with 11-28 on both sets is even less

Also, marginally heavier than the outgoing 105 set, but with 2 extra gears and better brakes, etc.

Should be way better than my Sora/Mekk stuff when I eventually decide to swap it all over though

DKay

ChrisB200SX wrote:

...so presumably the difference with 11-28 on both sets is even less

Shimano's quoted weight for a 6800 11-28 is 251g, which compares to the 276g which I measured for my 5800 item.

Yankee1

Thanks for the effort OP. Has anyone seen any reviews about the performance of the 5800 groupset yet, especially as compared to 6800? I'm surprised that I haven't found any online, despite looking.

holiver

I would imagine it performs pretty much identically apart from a small weight difference.

thefd

Yankee1 wrote:

Thanks for the effort OP. Has anyone seen any reviews about the performance of the 5800 groupset yet, especially as compared to 6800? I'm surprised that I haven't found any online, despite looking.

I have just fitted the groupset to my Ribble Stealth. I have only done 50km ride so far but I will do 170km at the weekend, so it is limited how much I can say, but - so far I am really impressed. It is a big improvement on the 105 5700 which I had. Changing gear is really sweet and light, and the braking power is impressive.

Time will tell - and hopefully they will perform without any problem this weekend.

I've not got the Ultegra so can't compare although I have ridden with it before.

ChrisB200SX

I have the numbers to hand now, I hadn't counted the cassette or the BB, but they share the BB anyway. I think the numbers I have are for the new Ultegra stuff...

Those (170mm crank) weights add up to 163g heavier than the Ultegra set and about 40g lighter than the previous 105 (5750).