Shimano 6800/RS685 Hoods

li2099
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Shimano 6800/RS685 Hoods

Postby li2099 » Thu Oct 20, 2016 9:14 pm

Hi

For some reason my new bike has a loose left hood cover for the Giant Defy.
It's a Shimano RS685 shifters.
Not able to find any locally, I'm wondering if the Ultegra 6800 are the same shape?

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Duck!
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Re: Shimano 6800/RS685 Hoods

Postby Duck! » Thu Oct 20, 2016 9:23 pm

No. The RS685 hoods are taller in the peak due to the hydraulic internals. 6800s won't fit.

The hoods have all sorts of little alignment knobs on the inner surface; make sure they're all properly located in their matching holes in the hood body.
I had a thought, but it got run over as it crossed my mind.

li2099
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Re: Shimano 6800/RS685 Hoods

Postby li2099 » Thu Oct 20, 2016 10:44 pm

Ah damn it.
Need to check but I'll check again with the holes.

battler2
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Re: Shimano 6800/RS685 Hoods

Postby battler2 » Fri Oct 21, 2016 2:05 am

6800 = 5800 hoods the same i presume?

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Tim
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Re: Shimano 6800/RS685 Hoods

Postby Tim » Fri Oct 21, 2016 7:31 am

Duck! wrote:
The hoods have all sorts of little alignment knobs on the inner surface; make sure they're all properly located in their matching holes in the hood body.


Make sure none of those holes in the shifter body have been inadvertently taped-over with bar tape.
If a hole is covered over the hood won't sit properly on the shifter and could feel lumpy or loose.
I have the same shifters and the hoods don't quite seem to butt up to the handlebars as close and tight as some other shifters and hoods.

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biker jk
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Re: Shimano 6800/RS685 Hoods

Postby biker jk » Fri Oct 21, 2016 8:29 am

Yes the RS685 hoods are not a tight fit and can move. On a ride I had the left hood move so much that the lever was blocked and wouldn't release the cable. Had to stop and refit the hood.

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Duck!
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Re: Shimano 6800/RS685 Hoods

Postby Duck! » Fri Oct 21, 2016 10:16 am

battler2 wrote:6800 = 5800 hoods the same i presume?


Yes.

Just in case anyone's wondering, 5700/6700 is the only generation where the two models don't share the same hoods.
I had a thought, but it got run over as it crossed my mind.

li2099
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Re: Shimano 6800/RS685 Hoods

Postby li2099 » Fri Oct 21, 2016 2:46 pm

Thanks for all the info.
Having Googled around online, it seems there's quite a fair amount of people with the same issue.
It's not too bad atm.
This is what it looks like most of the time:
Image

Patt0
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Re: Shimano 6800/RS685 Hoods

Postby Patt0 » Fri Oct 21, 2016 2:54 pm

Grab the chin strap and pull it down and make sure the edge is not digging in and curled around. When you ride keep a finger on the chin strap when you are on the hoods.

Mine is the same.
Image

li2099
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Re: Shimano 6800/RS685 Hoods

Postby li2099 » Wed Oct 25, 2017 10:57 am

Sorry to dig up my own thread but just bought new hoods and Shimano have improved the design to counter this problem.
Here you can see extra tabs(circled in red) are now moulded inside to add better fit.
You can also see how much larger the old hoods are compared to the new one due to this problem.
Image
Image
Image
Image
Image
Image

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MichaelB
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Re: Shimano 6800/RS685 Hoods

Postby MichaelB » Wed Oct 25, 2017 11:31 am

Where did you source them from ?

Having same issue on mine and have to check the new ones that I have in the shed yet to fit.

li2099
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Re: Shimano 6800/RS685 Hoods

Postby li2099 » Wed Oct 25, 2017 12:37 pm

MichaelB wrote:Where did you source them from ?

Having same issue on mine and have to check the new ones that I have in the shed yet to fit.

I bought mine from eBay. They are original Shimano parts that I can't seem to find anywhere here.
https://www.ebay.com.au/itm/Shimano-ST- ... 2749.l2649

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Tim
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Re: Shimano 6800/RS685 Hoods

Postby Tim » Wed Oct 25, 2017 2:38 pm

That's handy info thanks li2099.
I checked the set I bought a couple of months ago but haven't fitted yet. They look to be the updated ones.
Bought mine from Bikepro, Surrey Hills, Vic if anyone wants or needs them a bit quicker than the slow boat from China.
They were $30.00 incl. postage. (from eBay).
Have you fitted yours yet. If so are they tighter than the originals?

li2099
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Re: Shimano 6800/RS685 Hoods

Postby li2099 » Wed Oct 25, 2017 3:36 pm

Tim wrote:That's handy info thanks li2099.
I checked the set I bought a couple of months ago but haven't fitted yet. They look to be the updated ones.
Bought mine from Bikepro, Surrey Hills, Vic if anyone wants or needs them a bit quicker than the slow boat from China.
They were $30.00 incl. postage. (from eBay).
Have you fitted yours yet. If so are they tighter than the originals?

I've fitted mine and they are very tight but now I'm also super careful not to leave it flipped up for too long while I change the shift cables, bleed brakes and wrap new bar tape.
Looking around the shifters, there's no slack/ flappy hoods around.
Haven't gotten around to finishing those off yet so can't test out how they fare on a ride.

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MichaelB
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Re: Shimano 6800/RS685 Hoods

Postby MichaelB » Thu Oct 26, 2017 4:29 pm

MichaelB wrote:Where did you source them from ?

Having same issue on mine and have to check the new ones that I have in the shed yet to fit.


:mrgreen: Mine are the newer ones. Just waiting on some bar tape to do it all at once.

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MichaelB
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Re: Shimano 6800/RS685 Hoods

Postby MichaelB » Mon Nov 06, 2017 9:09 am

Finally fitted mine just before the weekend. For love nor money, couldn't reef the old ones off, so resorted to cutting.

Soaked the new ones in warm water 1st, and they went on OK.

Fit is MUCH better :D

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Re: Shimano 6800/RS685 Hoods

Postby li2099 » Mon Nov 06, 2017 3:58 pm

Haha I still forget and look down at my hoods and check the fit when I stop at lights because that's been my natural reaction for a year.

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Duck!
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Re: Shimano 6800/RS685 Hoods

Postby Duck! » Mon Nov 06, 2017 10:26 pm

Although hydraulics make it a tad trickier, requiring a partial drain of the system, the easiest way to change hoods is to disconnect the cables and remove the shifters from the bar, leaving the clamps, bar tape and outer cables in place. Work the hoods off over the back of the bracket body. Fitting the new ones is exactly the opposite. They'll need a little bit of stretching, because the back end of bracket body that goes against the bar is wider than the grip area, but they're pretty forgiving. Feed the gear cable (and brake cable for a mechanical system) into the outer/s, engage the clamp nut on the bolt a couple of turns to ensure it's connected, use a flat screwdriver or similar to pick the edges of the tape out and tuck the bracket body back under the wrap, tighten the clamp & reconnect your hydro line if applicable & top up the system, and retune the gears.

I haven't had to do hoods on any hydro levers (R785, RS685) yet, so not sure on the time for those, but I can do both hoods on a full mechanical system in about 20 minutes with this method.
I had a thought, but it got run over as it crossed my mind.

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MichaelB
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Re: Shimano 6800/RS685 Hoods

Postby MichaelB » Tue Nov 07, 2017 9:08 am

Sounds fine and maybe a better way, but the Stanley knife, some swearing & grunting and warm water worked for me in 1/2 the time.
Either way works :D

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