Go Back  Bike Forums > Bike Forums > General Cycling Discussion
Reload this Page >

Should there be a cap here?

General Cycling Discussion Have a cycling related question or comment that doesn't fit in one of the other specialty forums? Drop on in and post in here! When possible, please select the forum above that most fits your post!

Should there be a cap here?

Old 01-26-20, 06:19 PM
Senior Member
Thread Starter
Join Date: Feb 2014
Location: Westchester, NY
Posts: 172

Bikes: Scott Foil RC 20, Litespeed Cherohala City

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 72 Post(s)
Liked 61 Times in 37 Posts
Should there be a cap here?

I never had a non Shimano crank so I am not sure if there should be a cap on the non drive side crank? I think the crank is a 3D Rotor...

Jrasero is offline  
Old 01-26-20, 06:47 PM
Senior Member
alcjphil's Avatar
Join Date: Jun 2002
Location: Montreal, Quebec
Posts: 4,851
Mentioned: 15 Post(s)
Tagged: 0 Thread(s)
Quoted: 1323 Post(s)
Liked 848 Times in 525 Posts
There are lots of cranks that have a wide open spindle on one side or another. generally speaking, that wide open cavity has nothing to do with anything that might damage bottom bracket bearings. If the crank and bottom bracket are well designed, this should be nothing to worry about. just because it doesn't look like a Shimano crank does not mean that it will be a problem
alcjphil is offline  
Old 01-26-20, 07:29 PM
Senior Member
Join Date: Feb 2019
Location: Indiana
Posts: 540

Bikes: 1984 Fuji Club, Suntour ARX; 2013 Lynskey Peloton, mostly 105 with Ultegra rear derailleur, Enve 2.0 fork; 2020 Masi Giramondo 700c, full Deore with TRP dual piston mech disk brakes

Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 291 Post(s)
Liked 64 Times in 56 Posts
The easiest way to tell if there should be cap there is to see if it's threaded where a cap would go, if so then yes there should be a cap there, if not then there is no need for one.
greatscott is offline  
Old 01-26-20, 09:56 PM
Callipygian Connoisseur
Join Date: Nov 2008
Posts: 1,382
Mentioned: 13 Post(s)
Tagged: 0 Thread(s)
Quoted: 563 Post(s)
Liked 346 Times in 189 Posts
Think of the grams you’re saving by leaving it off.

Kedosto is offline  
Likes For Kedosto:
Old 01-26-20, 10:08 PM
Non omnino gravis
DrIsotope's Avatar
Join Date: Feb 2015
Location: SoCal, USA!
Posts: 8,553

Bikes: Nekobasu, Pandicorn, Lakitu

Mentioned: 119 Post(s)
Tagged: 0 Thread(s)
Quoted: 4904 Post(s)
Liked 1,725 Times in 955 Posts
That's a Rotor 3D30, and that's how it's supposed to look. The 3D30 INPower has a door there.
DrIsotope 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 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.