Hybrid Bicycles Where else would you go to discuss these fun, versatile bikes?

Shimano Acera 48/38/28

Old 07-04-18, 06:39 PM
  #1  
Troul
:D
Thread Starter
 
Troul's Avatar
 
Join Date: Oct 2013
Location: Mich
Posts: 1,538
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Liked 12 Times in 9 Posts
Shimano Acera 48/38/28

Im replacing my BB, before I do, i've wondered if there's a fsa I could jump up to that will be a better option for durability & possibly gearing?

I have an Acera 48/38/28 that supports the 8 speed on my trek 8.3DS. It's been ok for my routine use, but I wouldn't be opposed to something with a 50/38/28 if that even exists? I don't need any more low end grunt then the 28, so anything lower than the 38/28 combo wouldn't help any, it'd make it useless for my needs.

I know I make need to invest in another BB tool if I go deore, which is fine by me. Or I can just pick up a stock replacement BB for the Acera & call it good, but are there any better options then standard BB's for it?
Troul is offline  
Old 07-04-18, 07:48 PM
  #2  
pjthomas
Senior Member
 
Join Date: Sep 2017
Location: Connecticut
Posts: 141

Bikes: 2000 Trek 720 Multitrack (plus)

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 44 Post(s)
Liked 0 Times in 0 Posts
You probably won't find a triple crank with 50, 48 is tops. For a hybrid that should be plenty. If you are spinning out a 11 rear with a 48 front consider a road double. If not and you just want more speed on the cassette when using the 48 consider changing the cassette.

Mixing groupset can work, I use a 10 speed deore crank with 9 speed everthing else but I don't think mixing and 10 with 8 is advisable since the chain rings will be thinner.
pjthomas is offline  
Old 07-05-18, 04:28 AM
  #3  
Jarrettsin
Senior Member
 
Jarrettsin's Avatar
 
Join Date: Apr 2015
Location: Bronx, NY
Posts: 448

Bikes: 2016 Trek FX7.4

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 58 Post(s)
Liked 0 Times in 0 Posts
Could you deal with 50/39/30 that's your average road triple.
Jarrettsin is offline  
Old 07-05-18, 04:48 AM
  #4  
hokiefyd
Senior Member
 
Join Date: Feb 2017
Location: Northern Shenandoah Valley
Posts: 2,188

Bikes: 2018 Redline Zander, 2018 Giant Roam 2, 2015 Trek Verve 3, 1997 Trek 750, 1969 Peugeot PO-18

Mentioned: 25 Post(s)
Tagged: 0 Thread(s)
Quoted: 739 Post(s)
Liked 44 Times in 40 Posts
You could use a "road triple" which are commonly offered in 50 teeth and more on the large ring. One of my bikes has a 50/40/30 triple; it's an older Sugino crankset.

The Acera is from Shimano's "mountain" lineup, and I don't think they come in anything larger than 48.
hokiefyd is offline  
Old 07-05-18, 05:39 AM
  #5  
Troul
:D
Thread Starter
 
Troul's Avatar
 
Join Date: Oct 2013
Location: Mich
Posts: 1,538
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Liked 12 Times in 9 Posts
Originally Posted by Jarrettsin View Post
Could you deal with 50/39/30 that's your average road triple.
I could most def deal with it, any suggestions?
Troul is offline  
Old 07-05-18, 05:56 AM
  #6  
GrainBrain
Senior Member
 
GrainBrain's Avatar
 
Join Date: Aug 2017
Location: Central Io-way
Posts: 1,220

Bikes: LeMond Zurich, Giant Talon 29er

Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 637 Post(s)
Likes: 0
Liked 32 Times in 21 Posts
Originally Posted by Troul View Post
I could most def deal with it, any suggestions?
Claris 2403 cranksets are around $60 online. Be advised you're gaining 4% from a 48t to 50t. I'd just replace the BB with stock and be done. Or I bet you could find a 50t ring to install on your current Acera crankset.

What I'd do is wait a bit and save some cash then buy a Tiagra 4700 groupset for around $250. You'd gain two gears and really step up the quality vs spending $100 now on a 4% improvement.
GrainBrain is offline  
Old 07-05-18, 06:42 AM
  #7  
Troul
:D
Thread Starter
 
Troul's Avatar
 
Join Date: Oct 2013
Location: Mich
Posts: 1,538
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Liked 12 Times in 9 Posts
I am seeing there is an option for an Alivio 9sp Drivetrain Groupset. Reviews state it is a nice upgrade over what I have & will fit, but it doesn't state what the teeth count are for the FSA & doesn't state if there is a tooling difference to what I use now for the Acera.

Thoughts?
Troul is offline  
Old 07-05-18, 08:04 AM
  #8  
hokiefyd
Senior Member
 
Join Date: Feb 2017
Location: Northern Shenandoah Valley
Posts: 2,188

Bikes: 2018 Redline Zander, 2018 Giant Roam 2, 2015 Trek Verve 3, 1997 Trek 750, 1969 Peugeot PO-18

Mentioned: 25 Post(s)
Tagged: 0 Thread(s)
Quoted: 739 Post(s)
Liked 44 Times in 40 Posts
Originally Posted by Troul View Post
I am seeing there is an option for an Alivio 9sp Drivetrain Groupset.
Where are you seeing this? Can you post a link (or, if the forum software won't allow it, give the vendor)?

Shimano's current Alivio groupset is divided into two sub-categories: mountain linked here and touring linked here. Differences in them are slight. You can review those pages to see what cranksets are available, and with what gearing. It looks like the largest chain ring on any of the options has 48 teeth. You're very likely going to have to go to a road groupset to get more than 48 teeth.
hokiefyd is offline  
Old 07-05-18, 12:40 PM
  #9  
Troul
:D
Thread Starter
 
Troul's Avatar
 
Join Date: Oct 2013
Location: Mich
Posts: 1,538
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Liked 12 Times in 9 Posts
48 36 26 FSA are the tooth counts. I found it on chain rxn for the Alivio but had to contact them to seek the details.
i was hopeful at first before finding out about the specs.
Troul is offline  
Old 07-06-18, 12:18 AM
  #10  
csport
Senior Member
 
Join Date: Sep 2015
Location: New York, NY, USA
Posts: 302

Bikes: Double Cross Disc (2017)

Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 89 Post(s)
Liked 2 Times in 2 Posts
Originally Posted by Troul View Post
I have an Acera 48/38/28 that supports the 8 speed on my trek 8.3DS. It's been ok for my routine use, but I wouldn't be opposed to something with a 50/38/28 if that even exists? I don't need any more low end grunt then the 28, so anything lower than the 38/28 combo wouldn't help any, it'd make it useless for my needs.
Can your chainrings be unbolted? If you can find a 50t chainring with the proper BCD it will give you a 50-38-28. You can also replace the FD with some Alivio or Deore one made for 48-36-26, it will have the correct top-middle tooth difference (12t).
csport is offline  
Old 07-06-18, 02:13 AM
  #11  
Troul
:D
Thread Starter
 
Troul's Avatar
 
Join Date: Oct 2013
Location: Mich
Posts: 1,538
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Liked 12 Times in 9 Posts
The chain rings are not separable; I was thinking that too. lol
Troul is offline  
Old 07-06-18, 01:52 PM
  #12  
Jarrettsin
Senior Member
 
Jarrettsin's Avatar
 
Join Date: Apr 2015
Location: Bronx, NY
Posts: 448

Bikes: 2016 Trek FX7.4

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 58 Post(s)
Liked 0 Times in 0 Posts
To match a 3/8, the Claris 2403 cranksets might be your best bet. Try google FSA Tempo also.
Jarrettsin is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
reissue59
Classic & Vintage
11
10-26-17 10:24 AM
gerv
Living Car Free
39
02-09-13 11:47 PM
M Green
Classic & Vintage
4
04-11-10 02:54 PM
Jawn P
Great Lakes
2
02-13-09 05:13 PM

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

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