Donate!
Welcome, Guest. Please Login or Register :: View Members
Pages: 1 2 
Send Topic Print
Engine braking versus brakes (Read 197 times)
stewmills
Serious Thumper
*****
Offline

Imagination is more
important than
knowledge

Posts: 2641
Auburn, AL
Gender: male
Engine braking versus brakes
07/01/15 at 13:06:58
 
When I was at the Dragon here recently and running through the mountains all afternoon, I noticed I was of course using my brakes a lot and didn't want to overwork them. I know that downshifting gear-to-gear is not recommended because of damage to the dogs and paws (I think that is what someone here called it).  

I wasn't downshifting at high speeds and popping the clutch, rather (for example) running about 45ish in 4th and upon approaching a moderate downhill turn I would just roll off the throttle, leaving it in 4th gear, and let the engine slow the bike up a little.  When I was ready to speed up, I would then get back into the throttle as needed or downshift to third if I had slowed up considerably (not releasing the clutch to further slow down) and go on about my business.

So, is rolling off the throttle relatively safe for slowing on a downhill, or is it just as bad as downshifting and popping the clutch?

I am asking as I plan to do some more mountain roads hopefully soon and I don't know if I need to focus on using my brakes 99.9% of the time for all stopping/slowing needs or if my riding style is kinda what you experts do as well?

Thanks!
Back to top
 
 

2008 | 152/52.5–Air Mix 3/4 | Rotella T4 | Seat Lift w/Sheepskin | Speedo Rattle | Rear Pulley Shim | 140/90-15 Rear | Kaw Front Pulley | Relocated Rear Signals

FREEDOM ISN'T FREE!
  IP Logged
Dave
YaBB Moderator
ModSquad
*****
Offline

SuzukiSavage.com
Rocks!

Posts: 18099
Camp Springs, Kentucky
Gender: male
Re: Engine braking versus brakes
Reply #1 - 07/01/15 at 13:29:32
 
Rolling off the throttle to slow down is fine....and something a big single is really good at.  On some of the roads around here I can go round most the corners without using brakes...the engine compression and wind resistance is enough.

Closing the throttle completely and allowing the engine to pop,bang,pop,bang,pop the entire time you are slowing down is a bit annoying....so keeping just a bit of open throttle to cut down on the noise is desirable.  You just add enough throttle so the popping stops - but not enough throttle to make the bike accelerate.

Downshifting in a manner that brings the engine rpm up really high to slow you down....not my riding style and brake pads are pretty cheap.

If I am on a 60 mph road and slowing down for a stop sign, I use my brakes and downshift as the bike is slowing down - but mostly the brakes are doing the work and I am shifting so the bike will be in 1st gear when I get stopped.
Back to top
 
 

Someday I will be old......But not today!

  IP Logged
stewmills
Serious Thumper
*****
Offline

Imagination is more
important than
knowledge

Posts: 2641
Auburn, AL
Gender: male
Re: Engine braking versus brakes
Reply #2 - 07/01/15 at 13:35:09
 
Dave wrote on 07/01/15 at 13:29:32:
Closing the throttle completely and allowing the engine to pop,bang,pop,bang,pop the entire time you are slowing down is a bit annoying....


But that's the whole objective, right? To sound cool?

Seriously though, it sounds like I have the right perspective and am doing the right thing and not the wrong things.

Just wanted to make sure I didn't come rolling down the mountain and create a pop,bang,pop,bang,pop, KABOOM and have S40 engine parts laying all in the road.  Shocked
Back to top
 
 

2008 | 152/52.5–Air Mix 3/4 | Rotella T4 | Seat Lift w/Sheepskin | Speedo Rattle | Rear Pulley Shim | 140/90-15 Rear | Kaw Front Pulley | Relocated Rear Signals

FREEDOM ISN'T FREE!
  IP Logged
chzeckmate
Serious Thumper
*****
Offline

Be the person your
dog thinks you are

Posts: 514
Houston, Texas
Gender: male
Re: Engine braking versus brakes
Reply #3 - 07/01/15 at 13:47:02
 
If you're doing it wrong then I'm doing it wrong too.  That's the way I've always ridden for the last 30 years and I haven't had any adverse effects to my bikes.  As long as you downshift and decelerate in a smooth and controlled way at the correct rpm, it is my humble opinion that it will do no more harm to your engine and transmission than upshifting in a smooth and controlled manner while accelerating would do.  Of course my thinking is purely empirical...I'd be interested to see some hard data on this.
Back to top
 
 

'05 S40, dyna muffler, rejet, high flow filter, Mobil 1 Racing 4T, Shinko 230 set with 140/90 rear, raptor, seat lift, LED running lights/signals, tach, reversed risers, homemade MR10 Lexan windscreen
  IP Logged
stewmills
Serious Thumper
*****
Offline

Imagination is more
important than
knowledge

Posts: 2641
Auburn, AL
Gender: male
Re: Engine braking versus brakes
Reply #4 - 07/01/15 at 13:50:06
 
chzeckmate wrote on 07/01/15 at 13:47:02:
If you're doing it wrong then I'm doing it wrong too.  That's the way I've always ridden for the last 30 years and I haven't had any adverse effects to my bikes.


chzeckmate, I think we're good if you and I stick together. Despite what my parents told me growing up, I am going with the argument that two wrongs DO make a right.   Grin
Back to top
 
 

2008 | 152/52.5–Air Mix 3/4 | Rotella T4 | Seat Lift w/Sheepskin | Speedo Rattle | Rear Pulley Shim | 140/90-15 Rear | Kaw Front Pulley | Relocated Rear Signals

FREEDOM ISN'T FREE!
  IP Logged
chzeckmate
Serious Thumper
*****
Offline

Be the person your
dog thinks you are

Posts: 514
Houston, Texas
Gender: male
Re: Engine braking versus brakes
Reply #5 - 07/01/15 at 14:05:54
 
stewmills wrote on 07/01/15 at 13:50:06:
chzeckmate, I think we're good if you and I stick together. Despite what my parents told me growing up, I am going with the argument that two wrongs DO make a right.   Grin


Well I'll go with that too and if we do end up with S40 parts lying all over the road, we can help each other rebuild and keep it our little secret  Wink
Back to top
 
 

'05 S40, dyna muffler, rejet, high flow filter, Mobil 1 Racing 4T, Shinko 230 set with 140/90 rear, raptor, seat lift, LED running lights/signals, tach, reversed risers, homemade MR10 Lexan windscreen
  IP Logged
Kris01
Serious Thumper
*****
Offline

Eat, sleep, RIDE!

Posts: 3767
Tennessee
Gender: male
Re: Engine braking versus brakes
Reply #6 - 07/01/15 at 18:50:49
 
stewmills wrote on 07/01/15 at 13:50:06:
Despite what my parents told me growing up, I am going with the argument that two wrongs DO make a right.   Grin


Two wrongs don't make a right but three rights make a left!

Think about it!  Grin
Back to top
 
 

There's no problem that a full tank of gas and a sunny day can't fix!

2008 S40, Rotella T 15W-40 w/ZDDP added, Dyna, 140/90-15, Battery Tender Jr., Seat lift, #52.5/150/3 washers, Raptor
  IP Logged
jcstokes
Serious Thumper
*****
Offline

SuzukiSavage.com is
very useful

Posts: 2119
Mauku New Zealand
Gender: male
Re: Engine braking versus brakes
Reply #7 - 07/01/15 at 20:37:33
 
I do down change to help braking sometimes. It's a matter of judging revs, I would be quite happy going from fifth to fourth at say 70 mph as the ratio spacing isn't that wide. You could probably go fourth to third at 60 mph without too much worry, don't do it if you feel uncomfortable with it. The big gap in ratios seems to be between third and second, don't attempt to go into first at much over 10 mph if you are moving. The owners manual advises that the maximum gear speeds for a run in bike are First 35 mph, Second 55mph, Third 75 mph, Fourth 90 mph and fifth 100 mph. The figures for the top two gears need to betaken with a large dose of salt.
Back to top
 
 

Completely stock 2010 S40, aftermarket rev counter and back pack, Airhawk seat pad
  IP Logged
1st2know
Senior Member
****
Offline

Currently between
Savages

Posts: 295
Seattle, WA
Gender: male
Re: Engine braking versus brakes
Reply #8 - 07/01/15 at 22:15:32
 
In the twisties, I rely on throttle control and only use the brakes as an unplanned reaction - if I'm on the brakes, that means I need to stop - I should never need to stop in the twisties!

It's important to have the engine in the sweet spot in a turn - roll on to compress the shocks, roll off to reduce speed.

Downshifting in a manner that causes "brake dive" is wrong - if I flip to a lower gear, and release the clutch, I should not feel any brake dive. Brake dive from downshifting - bad.

When I ride in the rain, I use the engine as an old school ABS - the thumper's  compression from the engine helps reduce the likely-hood of locking up the back wheel. Same as the twisties - keep it in the sweet spot, roll off to slow, roll on to go.
Back to top
 
 

Kaw VN1700, V-Strom 650, Coal powered Chevy Spark.
  IP Logged
Boogie_with_Stu
Senior Member
****
Offline

Look Ma, no hands!

Posts: 280
Raleigh, NC
Gender: male
Re: Engine braking versus brakes
Reply #9 - 07/02/15 at 08:28:31
 
I was trained to use the gears and throttle to slow down when approaching turns or traffic conditions. I was also taught that 75% of my braking should be done with the front brake.

The savage is not a performance motorcycle. Dropping a gear and rolling off the throttle works just fine for me. Down-gearing through the gears like a semi on a long downward decline isnt necessary. I cant see how it would hurt our engine, as it likes to rev high anyway, but it seems like a bad habit to get into.
I've seen/heard these guys on crotch-rockets do the down-gear at high revs thang....I guess they just think it sounds cool.
Back to top
 
 

03 Savage, Pearl Novelty Black,Raptor mod, Boulevard seat, Rectifier mod -'07 Honda Nighthawk 250 stock
  IP Logged
Kris01
Serious Thumper
*****
Offline

Eat, sleep, RIDE!

Posts: 3767
Tennessee
Gender: male
Re: Engine braking versus brakes
Reply #10 - 07/02/15 at 18:36:01
 
jcstokes wrote on 07/01/15 at 20:37:33:
I do down change to help braking sometimes. It's a matter of judging revs, I would be quite happy going from fifth to fourth at say 70 mph as the ratio spacing isn't that wide. You could probably go fourth to third at 60 mph without too much worry, don't do it if you feel uncomfortable with it. The big gap in ratios seems to be between third and second, don't attempt to go into first at much over 10 mph if you are moving. The owners manual advises that the maximum gear speeds for a run in bike are First 35 mph, Second 55mph, Third 75 mph, Fourth 90 mph and fifth 100 mph. The figures for the top two gears need to betaken with a large dose of salt.


I may be completely wrong but your numbers seem very high to me. Even 10 mph in first seems a little high. My transmission would complain.
Back to top
 
 

There's no problem that a full tank of gas and a sunny day can't fix!

2008 S40, Rotella T 15W-40 w/ZDDP added, Dyna, 140/90-15, Battery Tender Jr., Seat lift, #52.5/150/3 washers, Raptor
  IP Logged
chzeckmate
Serious Thumper
*****
Offline

Be the person your
dog thinks you are

Posts: 514
Houston, Texas
Gender: male
Re: Engine braking versus brakes
Reply #11 - 07/02/15 at 19:57:28
 
Kris01 wrote on 07/02/15 at 18:36:01:
jcstokes wrote on 07/01/15 at 20:37:33:
I do down change to help braking sometimes. It's a matter of judging revs, I would be quite happy going from fifth to fourth at say 70 mph as the ratio spacing isn't that wide. You could probably go fourth to third at 60 mph without too much worry, don't do it if you feel uncomfortable with it. The big gap in ratios seems to be between third and second, don't attempt to go into first at much over 10 mph if you are moving. The owners manual advises that the maximum gear speeds for a run in bike are First 35 mph, Second 55mph, Third 75 mph, Fourth 90 mph and fifth 100 mph. The figures for the top two gears need to betaken with a large dose of salt.


I may be completely wrong but your numbers seem very high to me. Even 10 mph in first seems a little high. My transmission would complain.


If he's off, I'd say it isn't by too much.  If you're rev matching properly it's quite plausible, with one caveat...Overuse of this technique at these corresponding rpms on this bike would most likely result in untimely need for maintenance.  I'm curious what others have to say on this...anyone?
Back to top
 
 

'05 S40, dyna muffler, rejet, high flow filter, Mobil 1 Racing 4T, Shinko 230 set with 140/90 rear, raptor, seat lift, LED running lights/signals, tach, reversed risers, homemade MR10 Lexan windscreen
  IP Logged
Kris01
Serious Thumper
*****
Offline

Eat, sleep, RIDE!

Posts: 3767
Tennessee
Gender: male
Re: Engine braking versus brakes
Reply #12 - 07/02/15 at 20:03:48
 
I dunno. Using one of the examples, 4th to 3rd at 60 mph seems like you'd skid the rear tire.
Back to top
 
 

There's no problem that a full tank of gas and a sunny day can't fix!

2008 S40, Rotella T 15W-40 w/ZDDP added, Dyna, 140/90-15, Battery Tender Jr., Seat lift, #52.5/150/3 washers, Raptor
  IP Logged
chzeckmate
Serious Thumper
*****
Offline

Be the person your
dog thinks you are

Posts: 514
Houston, Texas
Gender: male
Re: Engine braking versus brakes
Reply #13 - 07/02/15 at 20:21:18
 
Kris01 wrote on 07/02/15 at 20:03:48:
I dunno. Using one of the examples, 4th to 3rd at 60 mph seems like you'd skid the rear tire.


That's why I mentioned that you'd have to rev match.  If you rev match properly you won't skid the tire. If you aren't familiar with rev matching you can watch this..
https://www.youtube.com/watch?v=g3gH_362QfM
Back to top
 
 

'05 S40, dyna muffler, rejet, high flow filter, Mobil 1 Racing 4T, Shinko 230 set with 140/90 rear, raptor, seat lift, LED running lights/signals, tach, reversed risers, homemade MR10 Lexan windscreen
  IP Logged
Art Webb
Serious Thumper
*****
Offline

SuzukiSavage.com
Rocks!

Posts: 3007
columbus, Texas
Gender: male
Re: Engine braking versus brakes
Reply #14 - 07/02/15 at 20:32:41
 
Kris01 wrote on 07/02/15 at 20:03:48:
I dunno. Using one of the examples, 4th to 3rd at 60 mph seems like you'd skid the rear tire.

Same rule as for not grenading the engine, EASE off the clutch, don't pop it
I had mine in the high 50 mph range today accelerating and it simply wasn't a problem, though I wouldn't downshift to 3rd until say 45 of so
Back to top
 
 
  IP Logged
Pages: 1 2 
Send Topic Print


« Home

 
« Home
SuzukiSavage.com
09/28/24 at 16:20:59



General CategoryRubber Side Down! › Engine braking versus brakes


SuzukiSavage.com » Powered by YaBB 2.2!
YaBB © 2000-2007. All Rights Reserved.