Have questions or want to discuss cycling? Join Now or Sign In to participate in the BikeRide community.

New: Take Part in the new April's Giveaway for a Chance to Win the Euybike S4 Pro Max ebike worth $1299


Cup Wrenchs - Which ones do I need?
#1
hi,

Hopefully someone can identify the wrenches I need:

thanks in advance.


[Image: twwLjh1.jpg]
  Reply
#2
http://www.amazon.com/Park-Tool-Slotted-Bracket-Adjustable/dp/B000C14P1C/
http://www.amazon.com/Park-Tool-HCW-4-Spanner-Wrench/dp/B000AOA2G8/
Nigel
  Reply
#3
The drive side fixed cup can be removed a variety of ways - including without specialized tools. Google "remove fixed cup," especially check out the sheldonbrown.com link. The other side if stuck if stubborn can usually be removed with an adjustable wrench. A 15mm cone wrench works fine for adjustment after reassembly, or even the same adjustable wrench. The specialized tools are a waste for home use, as they will not be used often and the square tapered bottom bracket in general is less common, let alone one with those specific wrench sizes. The drive side wrench flats are not necessarily the same size as that wrench, and you can't just loosen the fixed cup without having a way to hold it securely.

It would make much more sense to take off the old BB as cheaply as possible and use your money instead to buy a cartridge BB and tool
  Reply
#4
not what the OP requested - but a better more complete answer than my previous post.

On the last one that I did like that, I used a big Harbor Freight adjustable "crescent" wrench, and had to cut out the adjustable side. The manufacturer had not greased the threads, and the cup and the frame had rusted together.
Nigel
  Reply
#5
Thanks for replies.

I've bought a box end wrench but I'm not sure if I should turn clockwise or anti-clockwise.

The bike is a late 1990's Raleigh Pioneer.

Similar to this one:

[Image: S1FvQti.jpg]
  Reply
#6
You either bought the wrong wrench or are using the wrong term. You need a 15mm open end wrench for the adjustable cup (left/non-drive side) or an adjustable (Crescent) wrench but even tongue and groove pliers can do the job.

The fixed cup should *only* be removed if you determine that the BB needs to be replaced due to wear. The fixed cup is removed clockwise and I already specified a Google search that will tell you how. You can also just take in to a bike shop or co-op and have them remove it (take in frame only)
  Reply


Forum Jump:

[-]
10 Latest Posts
Front derailer not moving
Yesterday 10:19 PM
What are the best cost effective ways to...
Yesterday 09:33 PM
Dropper Post: Pros and Cons
Yesterday 08:02 PM
Dropper Post: Hints and Tips
Yesterday 07:59 PM
Hoping someone can help me identify this...
05-07-2025 05:47 PM
How to deal with rusty chain
05-07-2025 12:50 PM
Wearable Fitness Trackers
05-06-2025 11:39 PM
Gu/SiS/Energy Gels replacement
05-06-2025 11:37 PM
Good morning form Alberta CA
05-06-2025 11:34 PM
Interested in purchasing an ebike
05-06-2025 11:55 AM

[-]
Join BikeRide on Strava
Feel free to join if you are on Strava: www.strava.com/clubs/bikeridecom

[-]
Top 5 Posters This Month
no avatar 1. Painkiller
22 posts
no avatar 2. Flowrider
18 posts
no avatar 3. meamoantonio
18 posts
no avatar 4. enkei
16 posts
no avatar 5. GirishH
11 posts