Bicycle TutorBicycle Tutor

Show off your bike!

Post Reply 

Compatible Front Derailleur

Related video tutorials:
How to Adjust Your Front Derailleur How to Adjust Your Front Derailleur
* Now with 3D interactive instructions
Author Message
Kovalainen Offline
New Member


Posts: 1
Joined: Jan 2013
Post: #1
Compatible Front Derailleur
Hi everyone,

Complete newbie here, trying to fix up an oldish cheap bike of mine. I fixed up basically everything but am stuck with needing a new front derailleur and was wondering what I should look for when buying online.

Unfortunately I don't have any way to get to a bike store, so I'm really hoping you guys can help me out.

My bike is a Repco 26" YS628 MTB, the rear derailleur says shimano and the front one says falcon. There are six sprockets on the rear axle and three on the front.

Basically I was wondering if I could buy this part and if it'd work for me. Do I need to worry about things like the angle of my upright I'm clamping it too or the size of the three sprockets? Or is this all standard?

Cheers
Jan 22, 2013 07:18 AM
Find all posts by this user Quote this message in a reply
DaveM Offline
Veteran Member


Posts: 1,297
Joined: Aug 2008
Post: #2
RE: Compatible Front Derailleur
There are a couple things you need to check on your front derailleur (FD).
- Any "ATB" or "MTB" FD should handle the triple gears fine, just amae sure you don't get a road derailleur intended for 2 front gears.
- You need to know the "clamp diameter" which is the size of the tube the FD clamps on to on your frame. Probably 1", but you should check.
- You need to know if your current FD is "top pull" or "bottom pull". This is basically which way the cable comes out. If the cable goes down from the FD under the bottom bracket, it's a "bottom pull" and vice-versa
- Angle of the seat tube is probably not an issue unless you have a unusual frame design.

It looks like the one you link to should work, but I wanted to give you the details so you know what the issues are.
good luck
Jan 22, 2013 02:04 PM
Visit this user's website Find all posts by this user Quote this message in a reply
nfmisso Offline
Veteran Member

San Jose, CA
Posts: 2,063
Joined: Jul 2010
Post: #3
RE: Compatible Front Derailleur
What you picked will work - but that is an expensive FD.

I like the Shimano M413, which can be had for less than $10- on ebay; can be cabled for top or bottom pull, and is very easy to set up.

The thing you have to watch for is the diameter of the seat tube. There are three standard diameters: 28.6mm (1.125"), 31.8mm (1.25") and 34.9mm (1.375"). There are shims available. Mid level FD for 34.9mm are often very inexpensive, I purchase a short piece of 6061 tubing with 1.125" ID and 1.375" OD, cut pieces to length and slice length wise to make shims. You can see examples:
http://forums.bicycletutor.com/thread-3167.html
http://forums.bicycletutor.com/thread-3036-page-1.html
both have 28.6mm OD seat tubes with 34.9mm FDs

Nigel
Jan 24, 2013 01:57 PM
Find all posts by this user Quote this message in a reply
Post Reply 


Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  Trouble with chain & rear derailleur pulleys generic_cyclist 5 500 Apr 11, 2014 10:35 PM
Last Post: generic_cyclist
  Front derailluer Question Joshman_75 3 372 Apr 8, 2014 03:03 PM
Last Post: Joshman_75
  Front derailleur dakawan 3 400 Apr 5, 2014 01:18 PM
Last Post: dakawan
  Shimano TX35 Rear Derailleur Ebernal32 5 436 Apr 3, 2014 12:11 PM
Last Post: Ebernal32
  Rear derailleur problem, chain rubbing the lower pulley cage grandmaster 15 1,303 Mar 18, 2014 07:54 PM
Last Post: grandmaster
  Tiagra Rear Derailleur Won't Shift CheddarExpress 2 712 Feb 20, 2014 12:33 AM
Last Post: Joe_W
  Cable on front derailleur keeps getting damaged BigRiz 2 626 Feb 9, 2014 09:17 AM
Last Post: BigRiz
  SRAM X0 trigger shifter with Shimano Front Derailleur? gregw 6 1,838 Jan 28, 2014 07:58 PM
Last Post: gregw
  Shimano 105 - Rear Derailleur Problem RunningBehind 7 1,558 Jan 27, 2014 05:48 PM
Last Post: RunningBehind
  Suntour derailleur missing a spring? sgodwin 5 835 Jan 25, 2014 10:12 AM
Last Post: cny-man

Forum Jump:


RSS Forum RSS Feeds / Powered by MyBB

ISSN 1918-3445 © Copyright 2007-2010 Bicycle Tutor / Privacy Policy

feed