Rear Shock Lower Mount Pin / Cotter Pin
Close
    
    
Page 1 of 2 12 LastLast
Results 1 to 10 of 16
Like Tree19Likes

Thread: Rear Shock Lower Mount Pin / Cotter Pin

  1. #1
    Junior Member gifty74's Avatar
    Join Date
    Apr 2019
    Posts
    21

    Rear Shock Lower Mount Pin / Cotter Pin

    After buying a V-star 1100 shock to lower the bike for my wife & oldest daughter, I've found I want the ability to relatively quickly go back and forth from lowered to stock height. The shock removal / swap is relatively easy, but one of the biggest issues is the cotter pin at the end of the pin on the lower mount. After 2 or 3 flexes these break. I'm wondering why you couldn't use the bolt & lock nut (and washers) that came with the v-star shock. Wondering if it has to be a pin for a specific reason? Any other ideas?
    jtomelliott49 likes this.

  2. #2
    Senior Member Sthrnromr's Avatar
    Join Date
    Oct 2018
    Location
    Rural, South Carolina
    Posts
    630
    No specific reason I can think of. Cotter pins are super cheap to pick up even in bulk. So try the bolt and see how it goes or grab a bunch of cotter pins from Ace or your local hardware peddler. Another option could be to use a hitch pin, but I am not sure how that would work out, but it's an idea for quicker swaps...
    jtomelliott49 likes this.
    2010 TW200 - The Goat
    Triumphs
    ATVs
    Way too many past bikes to list

  3. #3
    Junior Member gifty74's Avatar
    Join Date
    Apr 2019
    Posts
    21
    My same thoughts. Hitch pin seems like it would be a good fit, but I always ask 'why wouldn't yamaha just use one'. Always seems there is some reason: vibration, stress, other mechanical reason. Hitch pin could be used over and over so that would be nice, but probably not as secure. Seems a split cotter pin is used in instances where you really don't want it to come off. More of a permanent solution I guess, not made to be taken on and off a lot.
    Fred, jtomelliott49 and Darth like this.

  4. Remove Advertisements
    TW200Forum.com
    Advertisements
     

  5. #4
    Senior Member imlost's Avatar
    Join Date
    Sep 2017
    Location
    Portland, Oregon / East Cape, Baja Sur
    Posts
    214
    Please let us know how this goes for you. I also bought a v-star shock, but I'm a ways from installing it. Having the flexibility to change the shock would be awesome.
    jtomelliott49 likes this.
    TWy to make a TWip to the TWails to make some TWacks.

  6. #5
    Junior Member gifty74's Avatar
    Join Date
    Apr 2019
    Posts
    21
    I've done the shock swap twice now and can do it pretty quickly without even removing the rear tire. This pin is actually one of the more tricky items as there isn't much room in there, and it has to be bent and un-bent in a tight space. Having a bolt with lock nut (like the top is done) would be much easier. Gonna try the lower bolt from the V-Star shock next time I have a few mins.
    Fred and jtomelliott49 like this.

  7. #6
    Senior Member buellzebub's Avatar
    Join Date
    Oct 2015
    Location
    Breedon on the Hill, UK
    Posts
    324
    I haven't seen the V Star bolt but I imagine you should use a shoulder bolt so you don't over tighten it in the mounting and a nylock type nut, or maybe a pair of locking nuts.
    Thinking more about it, maybe a castellated nut with an 'R' pin and a small hole drilled through the bolt.
    Fred, jtomelliott49 and Darth like this.

  8. #7
    Senior Member Fred's Avatar
    Join Date
    Dec 2011
    Location
    Turtle Wrangling the Sierras
    Posts
    18,424
    jtomelliott49 likes this.
    2003 TW200 "Betty Boop"
    2006 TW200 "Nibbler", a.k.a. “Mr.Gizmo"
    Hidden Content All Things Considered I’ld Rather Be Motorcycling

  9. #8
    Senior Member Maxpower's Avatar
    Join Date
    Feb 2017
    Location
    Waretown NJ
    Posts
    535
    If you use the bolt be careful not to pinch the shock in the mount when you tighten it.
    Myself I'm not good with the hitch pin. I'd rather use the cotter pin
    jtomelliott49 likes this.
    87 TW

  10. #9
    Junior Member gifty74's Avatar
    Join Date
    Apr 2019
    Posts
    21
    Quote Originally Posted by Maxpower View Post
    If you use the bolt be careful not to pinch the shock in the mount when you tighten it.
    Yeah, for sure. Will make sure there's free motion after putting it in. Seems a bolt is the more secure option. Those lock nuts are not coming off unless there's a wrench on both nut and bolt head ends.
    jtomelliott49 likes this.

  11. #10
    Junior Member gifty74's Avatar
    Join Date
    Apr 2019
    Posts
    21
    So the stock shoulder bolt that shipped with my used v-star 1100 shock (the longer of the two bolts) does not quite have enough thread on it to allow the lock nut to bite at the end of travel. It's super close, but not safe enough. I would like to find the same sized bolt diameter / threads, but slightly longer non-threaded length. I'm thinking it also might need to be rated for the purpose, with shear stress across length (ie. hardened).

Page 1 of 2 12 LastLast

Sponosred Links

Posting Permissions

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

Similar Threads

  1. Replies: 7
    Last Post: 07-19-2018, 07:36 PM
  2. rear shock bottom pin
    By cccan in forum Technical Help
    Replies: 1
    Last Post: 04-13-2014, 03:46 PM
  3. anybody have a lower motor mount?
    By operose in forum TW200 Classifieds
    Replies: 3
    Last Post: 05-18-2012, 05:39 PM
  4. Cotter Pin Alternatives
    By Rainman in forum General Discussion
    Replies: 5
    Last Post: 02-03-2012, 06:08 PM
  5. Cotter Pin Installation Video
    By sorethumb in forum Technical Help
    Replies: 2
    Last Post: 09-23-2011, 08:14 PM