Shimano BR-5710 Direct Mount Rear Brakes
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Shimano BR-5710 Direct Mount Rear Brakes
Postby cjrich » Mon Jul 21, 2014 11:14 am
Been looking at some endurance bikes lately for possible upgrade. Very interested in the Scott Solace 20 but I don't know much about the Shimano BR-5710 rear brake setup it comes with. Anyone had any experience with these brakes that mount under the bottom bracket? I'm concerned they will get very dirty and pickup lube from the chain.
Other bikes I will look at are the Trek Domane 5.2 and Cannondale Synapse Ultegra.
Thanks
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Re: Shimano BR-5710 Direct Mount Rear Brakes
Postby Duck! » Mon Jul 21, 2014 1:56 pm
You might get a bit more crud flicked up from the front wheel, but not much more than you get in a regular mounting position.
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Shimano BR-5710 Direct Mount Rear Brakes
Postby singlespeedscott » Thu Jul 24, 2014 7:26 pm
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Re: Shimano BR-5710 Direct Mount Rear Brakes
Postby jcjordan » Thu Jul 24, 2014 7:35 pm
As for the tuning of the breaks you won't have a problem as it's exactly the same as all other Shimano brakes.
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Re: Shimano BR-5710 Direct Mount Rear Brakes
Postby Duck! » Thu Jul 24, 2014 8:00 pm
Brakes on the other hand.....
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Re: Shimano BR-5710 Direct Mount Rear Brakes
Postby jcjordan » Thu Jul 24, 2014 8:01 pm
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Re: Shimano BR-5710 Direct Mount Rear Brakes
Postby justalf » Thu Jul 24, 2014 8:29 pm
Like Singlespeedscott, I do actually remember having an understay mounted u-brake on my MTB about 25 years ago. A Specialized Rockhopper. It was an awesomely powerful brake. Worked flawlessly in any conditions except for the few times when the chain would actually bounce up and get stuck in it. With some tweaks it happened less. It did crud up but everything does eventually. On a road bike that should be less of a problem. It does make the bike look a little sleeker and it is a stronger part of the frame so you might get better stopping power, maybe.
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Shimano BR-5710 Direct Mount Rear Brakes
Postby singlespeedscott » Thu Jul 24, 2014 9:20 pm
I run Campagnolo differential rear brakes and the single pivot brake on the rear is more then enough. Tuesday saw me doing 4000m of repeats on one of the harder road climbs in SEQ. I rarely touched my rear brake on the 70kmhr to 30kmhr switch back turns. If you need more rear brake them that you really need to think about your braking technique. The brake under the bottom bracket is all about the look and marketing. Nothing more. It's and answer to a question that nobody asked. A bit like integrated seatposts. They'll be all the rage for a couple of years then all of a sudden they'll be dropped from production.
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Re: Shimano BR-5710 Direct Mount Rear Brakes
Postby cjrich » Fri Jul 25, 2014 5:29 am
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Re: Shimano BR-5710 Direct Mount Rear Brakes
Postby mitchy_ » Fri Jul 25, 2014 5:41 am
maybe it's my background in high powered cars, but give me as much brake as you can, and some more. you can never have too much...
i personally love the direct mount brake under the stays. the look 695 with it's hidden front and rear brakes is a thing of beauty.
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Re: Shimano BR-5710 Direct Mount Rear Brakes
Postby singlespeedscott » Fri Jul 25, 2014 6:19 am
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Re: Shimano BR-5710 Direct Mount Rear Brakes
Postby mitchy_ » Fri Jul 25, 2014 6:53 am
less than the front, yes. doesn't change my point.singlespeedscott wrote:Being from a Motorsport back ground you should no that the rear does very little of the actual braking.
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Re: Shimano BR-5710 Direct Mount Rear Brakes
Postby HAKS » Mon Jul 28, 2014 10:37 pm
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Re: Shimano BR-5710 Direct Mount Rear Brakes
Postby rearviewmirror » Tue Jul 29, 2014 8:16 am
Such confidence, you post as if what you say is technically correct. But it's all opinion backed up with little experience and no facts.singlespeedscott wrote:You don't need more rear braking power on a road bike.
I run Campagnolo differential rear brakes and the single pivot brake on the rear is more then enough. Tuesday saw me doing 4000m of repeats on one of the harder road climbs in SEQ. I rarely touched my rear brake on the 70kmhr to 30kmhr switch back turns. If you need more rear brake them that you really need to think about your braking technique. The brake under the bottom bracket is all about the look and marketing. Nothing more. It's and answer to a question that nobody asked. A bit like integrated seatposts. They'll be all the rage for a couple of years then all of a sudden they'll be dropped from production.
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Re: Shimano BR-5710 Direct Mount Rear Brakes
Postby singlespeedscott » Tue Jul 29, 2014 10:18 pm
How do you come to this conclusion?rearviewmirror wrote:Such confidence, you post as if what you say is technically correct. But it's all opinion backed up with little experience and no facts.singlespeedscott wrote:You don't need more rear braking power on a road bike.
I run Campagnolo differential rear brakes and the single pivot brake on the rear is more then enough. Tuesday saw me doing 4000m of repeats on one of the harder road climbs in SEQ. I rarely touched my rear brake on the 70kmhr to 30kmhr switch back turns. If you need more rear brake them that you really need to think about your braking technique. The brake under the bottom bracket is all about the look and marketing. Nothing more. It's and answer to a question that nobody asked. A bit like integrated seatposts. They'll be all the rage for a couple of years then all of a sudden they'll be dropped from production.
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Re: Shimano BR-5710 Direct Mount Rear Brakes
Postby rkelsen » Wed Jul 30, 2014 11:19 am
So you've never had a fishtail skid? Consider yourself lucky. It is a horrible experience, because you lose control and in most circumstances cannot regain it. The bike becomes violent and can throw you off pretty hard.mitchy_ wrote:cycling has to be the only sport where people bitch and moan about having too much brake.
People who compare car brakes with bike brakes make me laugh. The dynamics could not be more different.
"The fastest that you can stop any bike of normal wheelbase is to apply the front brake so hard that the rear wheel is just about to lift off the ground. In this situation, the rear wheel cannot contribute to stopping power, since it has no traction.": http://sheldonbrown.com/brakturn.html
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Re: Shimano BR-5710 Direct Mount Rear Brakes
Postby mitchy_ » Wed Jul 30, 2014 11:32 am
if you read my post correctly, i'm not comparing the brakes. all i'm saying is i'd rather have too much brake and not need it, then the other way around.rkelsen wrote:So you've never had a fishtail skid? Consider yourself lucky. It is a horrible experience, because you lose control and in most circumstances cannot regain it. The bike becomes violent and can throw you off pretty hard.mitchy_ wrote:cycling has to be the only sport where people bitch and moan about having too much brake.
People who compare car brakes with bike brakes make me laugh. The dynamics could not be more different.
"The fastest that you can stop any bike of normal wheelbase is to apply the front brake so hard that the rear wheel is just about to lift off the ground. In this situation, the rear wheel cannot contribute to stopping power, since it has no traction.": http://sheldonbrown.com/brakturn.html
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Re: Shimano BR-5710 Direct Mount Rear Brakes
Postby rkelsen » Wed Jul 30, 2014 1:41 pm
And if you'd read my post correctly, you would have noticed that I'm saying "too much brake" on a bicycle will usually make a bad situation worse. The quote by Sheldon Brown really says it all.mitchy_ wrote:if you read my post correctly, i'm not comparing the brakes. all i'm saying is i'd rather have too much brake and not need it, then the other way around.
Conversely to cars & motorbikes where more brake is always better, and you can never really have too much.
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Shimano BR-5710 Direct Mount Rear Brakes
Postby cyclotaur » Tue Sep 01, 2015 10:09 pm
I'm currently riding a rented Scott Solace 20 with the BB mounted Tektro brake - it hardly works at all and is pretty filthy, probably more a reflection on the hire company than anything, but I reckon that area picks up all the spray from the front wheel rather than muck from the rear.rkelsen wrote:.........I'm saying "too much brake" on a bicycle will usually make a bad situation worse. The quote by Sheldon Brown really says it all.mitchy_ wrote: .....all i'm saying is i'd rather have too much brake and not need it, then the other way around.
Conversely to cars & motorbikes where more brake is always better, and you can never really have too much.
On the Scott they placed the brake there to maximise the compliance via the seat stays rather than for aero or any other reason. It makes for a great ride but not sure about the brake per se. I know there is a disc version as well, which brings a bunch of other issues to bear.
On a related issue, and bearing in mind I agree with rkelsen here, I don't think the current drive for discs on road race bikes is warranted on the basis of providing increased braking power alone, and I think they might cause some problems in the wet if wheels lock in the bunch. It's no good being able to stop wheels turning if the contact between tyre and tarmac gives way.
What motor vehicles have that bikes don't are anti-lock systems like ETS/ABS etc...
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Shimano BR-5710 Direct Mount Rear Brakes
Postby RonK » Tue Sep 01, 2015 10:29 pm
Surely you have been told caliper brakes are no good and you must have disc brakes.
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Re: Shimano BR-5710 Direct Mount Rear Brakes
Postby Dreams V Reallity » Wed Sep 02, 2015 11:14 am
Now the point of contention is ABS. Some love it, others bemoan about the 'lack of skill' this will bring about.
My point? Don't know. But if you want to have a discussion, do it without the 'attitude'. Thank you.
Personally, I would like to ride 2 (or3, or more) bikes with the same spec's, but fitted with different brakes. That would be 'scientific' and enlightening.
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Re: Shimano BR-5710 Direct Mount Rear Brakes
Postby Dreams V Reallity » Wed Sep 02, 2015 11:18 am
"When I was a boy..." One day ride to a park, whilst having 'lunch', we decided to downhill the grassy slope. The only bike that could was the single gear/freewheeler. Got a good work out that day, and made some awesome skids in the grass!!!
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