2018 jeffsy cf headset- Mtbr.com
Results 1 to 4 of 4
  1. #1
    mtbr member
    Reputation:
    Join Date
    May 2018
    Posts
    17

    2018 jeffsy cf headset

    Hi Guys,

    So I pulled apart my headset as I wanted to give it a good clean and re-grease all the bearings yesterday.

    Everything went well and put everything back together as it is, once everything was on I went for a little ride to make sure everything was fine only to find out there was a tiny knock coming from the fork area.

    At first I thought it was the fork playing up, but upon closer inspection it was the top headset bearing which has a little bit of play. With stems and spacers off and just the fork sitting within the bearing on the top tube, giving it a little wiggle would show the bearing had movement within cups of the frame.

    Now my question is, Is it still safe to ride this bike with a little bit of play in the headset?

    Second question, To all of you guys who had replaced their headsets, which headsets did you go for? cane creek? chris king? hope? and which models are they as I'm finding hard and confusing to which one actually fits

    I have emailed YT to see if I can get a replacement headset under warranty since it is only a 2 month old bike.

    EDIT: PS: Does anyone know the crown race measurement for the fork??
    Last edited by rubberduck29; 10-28-2018 at 03:56 AM.

  2. #2
    mtbr member
    Reputation: OneTrustMan's Avatar
    Join Date
    Nov 2017
    Posts
    344
    Hi

    1>
    That's normal. The CF frame uses an integrated headset.
    IS headsets bearings have play when unmounted.
    The moment you tightening everything up the play disappears.

    But you have the do it the right way.
    First tighten the ahead cap with the stem still being lose.
    Do it carefully until the play between the fork crown and the lower headtube is gone.
    You can check this with your fingers by touching this area while using the front break and pushing the bike forwards. Than tighten the stem.

    https://www.yt-industries.com/media/...524ff982d0.pdf

    Note:
    Both, a too tight or a lose headset while wreck the bearings over a short time.
    For some reason a lot of riders do it wrong and than complain about the poor quality of the headsets. My Acros ones still look brand new even after all that muddy park riding.
    Of course cleaning and greasing is a must too.

    2>
    Look for " TOP IS42 / BOTTOM IS52 headsets " which is the right size.

    3>
    When you buy a new headset, isn't there normally a crown race included?
    The measurement for all tapered forks should be the same.
    But different brands may use there own crown races I guess. ( to fit their headset )

    Cheers!

  3. #3
    jrm
    jrm is online now
    mtbr member
    Reputation: jrm's Avatar
    Join Date
    Jan 2004
    Posts
    11,181

  4. #4
    mtbr member
    Reputation:
    Join Date
    May 2018
    Posts
    17
    Quote Originally Posted by OneTrustMan View Post
    Hi

    1>
    That's normal. The CF frame uses an integrated headset.
    IS headsets bearings have play when unmounted.
    The moment you tightening everything up the play disappears.

    But you have the do it the right way.
    First tighten the ahead cap with the stem still being lose.
    Do it carefully until the play between the fork crown and the lower headtube is gone.
    You can check this with your fingers by touching this area while using the front break and pushing the bike forwards. Than tighten the stem.

    https://www.yt-industries.com/media/...524ff982d0.pdf

    Note:
    Both, a too tight or a lose headset while wreck the bearings over a short time.
    For some reason a lot of riders do it wrong and than complain about the poor quality of the headsets. My Acros ones still look brand new even after all that muddy park riding.
    Of course cleaning and greasing is a must too.

    2>
    Look for " TOP IS42 / BOTTOM IS52 headsets " which is the right size.

    3>
    When you buy a new headset, isn't there normally a crown race included?
    The measurement for all tapered forks should be the same.
    But different brands may use there own crown races I guess. ( to fit their headset )

    Cheers!
    Thanks heaps for answering all my questions!

Similar Threads

  1. 29er 2.6 tires on 2018 Jeffsy 29?
    By Rrknight in forum YT
    Replies: 33
    Last Post: 04-13-2019, 05:05 PM
  2. Replies: 2
    Last Post: 04-23-2018, 10:11 AM
  3. Replies: 6
    Last Post: 02-09-2018, 02:29 PM
  4. 2018 Jeffsy AL 29 Seat Post Question
    By DeeGee68 in forum YT
    Replies: 6
    Last Post: 02-01-2018, 07:10 PM
  5. Jeffsy AL2 29 vs 2018 trek fuel Ex8 28
    By AZripper in forum 29er Bikes
    Replies: 13
    Last Post: 12-16-2017, 08:56 PM

Members who have read this thread: 15

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

THE SITE

ABOUT MTBR

VISIT US AT

© Copyright 2019 VerticalScope Inc. All rights reserved.