Go Back  Bike Forums > Bike Forums > Road Cycling
Reload this Page >

Cassette question? More top end speed?

Notices
Road Cycling ďIt is by riding a bicycle that you learn the contours of a country best, since you have to sweat up the hills and coast down them. Thus you remember them as they actually are, while in a motor car only a high hill impresses you, and you have no such accurate remembrance of country you have driven through as you gain by riding a bicycle.Ē -- Ernest Hemingway

Cassette question? More top end speed?

Old 09-24-19, 04:09 PM
  #26  
Psimet2001 
I eat carbide.
 
Psimet2001's Avatar
 
Join Date: Jan 2006
Location: Elgin, IL
Posts: 20,809

Bikes: Lots. Van Dessel and Squid Dealer

Mentioned: 24 Post(s)
Tagged: 0 Thread(s)
Quoted: 756 Post(s)
Liked 223 Times in 115 Posts
Originally Posted by ThermionicScott View Post
Looks like Specialized calls it a "gravel bike", so it's not quite as silly a choice as a 'cross bike.
Gravel is just road racing on 90's mtbs.
__________________
PSIMET Wheels, PSIMET Racing, PSIMET Neutral Race Support, and 11 Jackson Coffee
Podcast - YouTube Channel
Video about PSIMET Wheels

Psimet2001 is offline  
Likes For Psimet2001:
Old 09-27-19, 07:24 AM
  #27  
Jax Rhapsody
Rhapsodic Laviathan
 
Jax Rhapsody's Avatar
 
Join Date: Jan 2013
Location: Louisville KY
Posts: 675

Bikes: Rideable; 83 Schwinn High Sierra. Two cruiser, bmx bike, one other mtb, three road frames, one citybike.

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 97 Post(s)
Likes: 0
Liked 12 Times in 9 Posts
Back when I had my custom Roadtech I felt the same way; as if I needed more top end gear. Nowadays on the gray ghost, the 52 is taxing. Despite having no problems pushing my ratrod with a 60 on it and it being a heavier bike. I will get back to pushing that 52, but I don't want to get to that point where it feels like I'm faster than the bike. But maybe that's a good thing... to be able to spin in final drive versus it being any kinda chore.

I know the OP is gone, but there's always a folding bike crank...
Jax Rhapsody is offline  
Old 10-02-19, 06:58 AM
  #28  
Mattyb13
Senior Member
Thread Starter
 
Mattyb13's Avatar
 
Join Date: Apr 2013
Location: Tampa Bay, FL
Posts: 156

Bikes: 2017 Specialized Diverge Comp Carbon Ltd. 2016 Specialized StumpJumper FSR Elite 650B

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 24 Post(s)
Liked 1 Time in 1 Post
Thanks for all the feedback. I learned a lot.
Mattyb13 is offline  
Old 10-02-19, 07:07 AM
  #29  
wphamilton
Senior Member
 
wphamilton's Avatar
 
Join Date: Apr 2011
Location: Alpharetta, GA
Posts: 14,981

Bikes: Nashbar Road

Mentioned: 70 Post(s)
Tagged: 0 Thread(s)
Quoted: 2773 Post(s)
Liked 171 Times in 119 Posts
Originally Posted by Psimet2001 View Post
I caught an "SCS" in the original post. Don't care that the model says it's not but with SCS you're running what is essentially a cross bike. You put a 50 on it. You want to go faster.
1. Spin. You're mashing.
2. Put a 53 on it
(have we really come to the point where people have forgotten that a 53 is considered a "full sized" crank?) - you already have an 11. That's as big as you can go on your setup.
3. Get an actual road bike instead of a cross bike masquerading as a road bike.
I wanted to say something like this but to amplify, the 11 isn't really a great gear for eking out your top speed, because it robs you of efficiency (more chain bend). Putting a standard 53 ring on allows you to use the 13 or 14. Or more ideally, spin faster with a larger cassette cog.

Save that 11 for mashing with a huge tailwind.
wphamilton is offline  
Old 10-02-19, 07:13 AM
  #30  
ridingfool
Senior Member
 
Join Date: Jun 2015
Posts: 237
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 84 Post(s)
Liked 18 Times in 16 Posts
Originally Posted by datlas View Post
This. 42+ MPH is plenty of top end.
For flats yes more than enough but not for decends
ridingfool is offline  
Old 10-02-19, 07:16 AM
  #31  
Mattyb13
Senior Member
Thread Starter
 
Mattyb13's Avatar
 
Join Date: Apr 2013
Location: Tampa Bay, FL
Posts: 156

Bikes: 2017 Specialized Diverge Comp Carbon Ltd. 2016 Specialized StumpJumper FSR Elite 650B

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 24 Post(s)
Liked 1 Time in 1 Post
Originally Posted by Psimet2001 View Post
I caught an "SCS" in the original post. Don't care that the model says it's not but with SCS you're running what is essentially a cross bike. You put a 50 on it. You want to go faster.
1. Spin. You're mashing.
2. Put a 53 on it (have we really come to the point where people have forgotten that a 53 is considered a "full sized" crank?) - you already have an 11. That's as big as you can go on your setup.
3. Get an actual road bike instead of a cross bike masquerading as a road bike.
What is an "SCS"? A couple of years back the Diverge and the Roubaix shared the same frame, and many components but were geared differently and came with different tires etc. I quickly learned that the Diverge was more of a 'do it all' road bike than a true road bike so I have been making some upgrades to make it more potent and capable on the roads. Especially now that I am living in Florida where its flat and consistent and fast. SO, I upgraded my 48/32 to a 50/34. Still in packs I see guys on truer road bikes carrying the same speed I am yet they have more gears to go then I do. SO, my thought process was the cassette was the next thing I can upgrade to get some more efficiency and speed out of the bike BEFORE I invest in another bike altogether. Thanks.
Mattyb13 is offline  
Old 10-02-19, 08:49 AM
  #32  
Rides4Beer
Senior Member
 
Join Date: Oct 2018
Location: SC
Posts: 1,030

Bikes: Defy | Revolt

Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 533 Post(s)
Liked 431 Times in 241 Posts
Originally Posted by ridingfool View Post
For flats yes more than enough but not for decends
Sometimes it's nice being a "bigger" guy, if I'm 40+ on a descent, I just tuck in and I'm passing everyone, no pedaling needed.
Rides4Beer is offline  
Old 10-02-19, 08:52 AM
  #33  
Zaskar
Senior Member
 
Join Date: Sep 2008
Posts: 438
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 254 Post(s)
Liked 63 Times in 44 Posts
Originally Posted by ridingfool View Post
For flats yes more than enough but not for decends
Do you really pedal over 40mph? Do you know how much power it takes to increase speed over 40 mph? Well... uh.. it's a lot. (math, physics... not my thing) but, there's that exponential thing - power to overcome wind resistance.
You're better off getting in your most bestest tuck and saving your legs for the inevitable climb that follows every 40 mph descent... it's just past that little bridge over that creek you can't see.
Zaskar is offline  
Likes For Zaskar:
Old 10-02-19, 09:08 AM
  #34  
rebel1916
Senior Member
 
rebel1916's Avatar
 
Join Date: Aug 2011
Posts: 3,068
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 42 Post(s)
Liked 29 Times in 17 Posts
Originally Posted by ridingfool View Post
For flats yes more than enough but not for decends
Aero is ALMOST always faster then pedaling when you get over 40MPH
rebel1916 is offline  
Likes For rebel1916:
Old 10-02-19, 09:16 AM
  #35  
nomadmax 
Senior Member
 
Join Date: Jun 2018
Location: SW Ohio
Posts: 1,405
Mentioned: 88 Post(s)
Tagged: 0 Thread(s)
Quoted: 634 Post(s)
Liked 646 Times in 344 Posts
Originally Posted by big john View Post
Well, he might not be able to do 120 rpm. A lot of inexperienced riders tend to mash.
Not typed or offered as being argumentative

If he is inexperienced that's all the more reason to work on the engine as opposed to the transmission. There's more to gain "bang for the buck" by doing so.
nomadmax is offline  
Likes For nomadmax:
Old 10-02-19, 01:36 PM
  #36  
big john
Senior Member
 
big john's Avatar
 
Join Date: Sep 2005
Location: In the foothills of Los Angeles County
Posts: 13,637
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 1036 Post(s)
Liked 632 Times in 395 Posts
Originally Posted by nomadmax View Post
Not typed or offered as being argumentative

If he is inexperienced that's all the more reason to work on the engine as opposed to the transmission. There's more to gain "bang for the buck" by doing so.
My point was if he's a masher he's not spinning that thing up to 42 mph, so why would he need a bigger gear?
big john is offline  
Likes For big john:
Old 10-02-19, 01:40 PM
  #37  
big john
Senior Member
 
big john's Avatar
 
Join Date: Sep 2005
Location: In the foothills of Los Angeles County
Posts: 13,637
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 1036 Post(s)
Liked 632 Times in 395 Posts
Originally Posted by Mattyb13 View Post
What is an "SCS"? A couple of years back the Diverge and the Roubaix shared the same frame, and many components but were geared differently and came with different tires etc. I quickly learned that the Diverge was more of a 'do it all' road bike than a true road bike so I have been making some upgrades to make it more potent and capable on the roads. Especially now that I am living in Florida where its flat and consistent and fast. SO, I upgraded my 48/32 to a 50/34. Still in packs I see guys on truer road bikes carrying the same speed I am yet they have more gears to go then I do. SO, my thought process was the cassette was the next thing I can upgrade to get some more efficiency and speed out of the bike BEFORE I invest in another bike altogether. Thanks.
So you're riding with those guys and you can't keep up because you don't have enough gear? Or you see guys going fast and they are not in their highest gear when you are?
Are you spun out? Do you often spin out in your highest gear? Just trying to understand what's going on.
big john is offline  
Old 10-02-19, 01:50 PM
  #38  
nomadmax 
Senior Member
 
Join Date: Jun 2018
Location: SW Ohio
Posts: 1,405
Mentioned: 88 Post(s)
Tagged: 0 Thread(s)
Quoted: 634 Post(s)
Liked 646 Times in 344 Posts
Originally Posted by big john View Post
My point was if he's a masher he's not spinning that thing up to 42 mph, so why would he need a bigger gear?
In that case, we are in total agreement
nomadmax is offline  
Old 10-02-19, 07:27 PM
  #39  
MattTheHat 
Senior Member
 
MattTheHat's Avatar
 
Join Date: Aug 2018
Location: Allen, TX
Posts: 1,369

Bikes: '20 Specialized Roubaix Expert, '18 Specialized Diverge Comp

Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 461 Post(s)
Liked 914 Times in 433 Posts
Originally Posted by terrymorse View Post
You actually use your 50x11? I sure don't--at least not on a level grade. 50x15 is about my highest useful gear on the flat, which gets me going about 26 mph (but not for long).

Gears higher than that (50x14, 50x13, 50x12, 50x11) on flat terrain are just hypothetical.
When I ride out of the saddle on the flat and moderate inclines, I’m often using 50x11. I just can’t crank very fast out of the saddle. The higher gear slows the cadence way down.
__________________

MattTheHat is offline  
Old 10-05-19, 09:32 PM
  #40  
john.b
Senior Member
 
john.b's Avatar
 
Join Date: Jun 2013
Location: Ragbraistan
Posts: 239
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 11 Post(s)
Liked 2 Times in 2 Posts
Something else to consider is that not all gravel/cross bikes have enough clearance to fit a double with a 53 chainring. I know that is true of some of Trekís Boone cross bikes.

Also, SCS hubs were a proprietary design by Specialized for a couple of years where they tried to solve the right problem with the wrong solution. If thatís what the OP has, itís worth being aware that they canít be replaced with any off-the-shelf hubs/wheels.
john.b is offline  
Old 10-07-19, 03:48 PM
  #41  
cpach
Senior Member
 
Join Date: Oct 2009
Location: Mt Shasta, CA, USA
Posts: 1,584

Bikes: Too many. Cannondale SuperSix, Trek Remedy 8, Trek Crossrip+ get the most ride time.

Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 342 Post(s)
Liked 113 Times in 92 Posts
Originally Posted by john.b View Post
Something else to consider is that not all gravel/cross bikes have enough clearance to fit a double with a 53 chainring. I know that is true of some of Trekís Boone cross bikes.

Also, SCS hubs were a proprietary design by Specialized for a couple of years where they tried to solve the right problem with the wrong solution. If thatís what the OP has, itís worth being aware that they canít be replaced with any off-the-shelf hubs/wheels.
As a technical solution it's not awful, but they never tried to build any industry consensus for it and didn't really try super hard to push it despite their massive size as a company. The really crap thing about SCS was that only two hubs have been made for it--the 24H Specialized hub and a special Hope hub, also in 24H. This is really dumb considering most of these bikes were for gravel/adventure and many customers were probably riding rougher roads, were heavier, and or were wanting to carry some luggage. Had a customer on an older Diverge completely obliterate the stock rear wheel--the hub flange was failing epicly (like a quarter of one blew off)in addition to the rim and the nipples. Ironically all the spokes themselves were fine. Only solution within budget I had was to source a Spec hub from a Specialized dealer and build a new wheel--because I had to do 24H I used an especially beefy rim (in this case, a DT R511) and built it to relatively high tension with extremely even tension--I hope it's still working well, I was clear it was not the solution I would have prefered.
cpach is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information

Copyright © 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.