Author Topic: Would you be interested in rear shock linkage greaseable bolts? (Read 10419 times)

rablack21 · « **on:** February 21, 2017, 11:50:48 AM »

I am in the process of making a few rear shock linkage greaseable bolts as mine is worn out and they don't sell them anymore. And most of the used ones these days are looking rough. I'm just checking to see if there is a need to produce more of them. They would basically be replicas of the factory bolt.

rablack21 · « **Reply #1 on:** February 21, 2017, 03:08:26 PM »

Poll added

dp250r · « **Reply #2 on:** February 23, 2017, 01:12:52 PM »

What is the bolt size diameter and length.

rablack21 · « **Reply #3 on:** February 23, 2017, 05:15:10 PM »

The factory bolt is a unique shouldered style M12x110 greaseable bolt. Mine will be a factory replacement of that.

Skeans1 · « **Reply #4 on:** February 23, 2017, 08:32:44 PM »

Quote from: rablack21;71919

The factory bolt is a unique shouldered style M12x110 greaseable bolt. Mine will be a factory replacement of that.

Not hard to make a bolt grease able

dp250r · « **Reply #5 on:** February 24, 2017, 10:42:04 AM »

I found a bolt that is the same diameter and length .I dont think it has the grease fitting.Im thinking about ordering it .Its a shock bolt from another source.

jcs003 · « **Reply #6 on:** February 24, 2017, 02:50:56 PM »

chrome plated or titanium so it will last extra long?

John

rablack21 · « **Reply #7 on:** February 24, 2017, 05:54:50 PM »

Quote from: dp250r;71936

I found a bolt that is the same diameter and length .I dont think it has the grease fitting.Im thinking about ordering it .Its a shock bolt from another source.

As I mentioned previously, it is NOT a regular run of the mill M12 bolt. Please pay close attention. Although it has threads of a m12 bolt, it enlarges up to 12.9-13mm in the middle section of the bolt where the bushings and the shock ride. If you use a regular size m12 bolt, you will have far too much slop in there. Will it work? Yes. But you will have a lot more slop in your linkage and it will wear out prematurely. If it were just that easy, I would have just gone down to the hardware store at bought one.

rablack21 · « **Reply #8 on:** February 24, 2017, 05:56:10 PM »

My intention would be zinc plating. The one I am making for myself will be zinced.

dp250r · « **Reply #9 on:** February 25, 2017, 08:48:41 AM »

The bolt I checked on isnt from the hardware store.From what I have read researching the atc 250r 84-85 has a 12x110 bolt.

Quote from: rablack21;71944

As I mentioned previously, it is NOT a regular run of the mill M12 bolt. Please pay close attention. Although it has threads of a m12 bolt, it enlarges up to 12.9-13mm in the middle section of the bolt where the bushings and the shock ride. If you use a regular size m12 bolt, you will have far too much slop in there. Will it work? Yes. But you will have a lot more slop in your linkage and it will wear out prematurely. If it were just that easy, I would have just gone down to the hardware store at bought one.

rablack21 · « **Reply #10 on:** February 25, 2017, 10:44:32 AM »

Quote from: dp250r;71957

The bolt I checked on isnt from the hardware store.From what I have read researching the atc 250r 84-85 has a 12x110 bolt.

Mind if I ask the website?

dp250r · « **Reply #11 on:** February 25, 2017, 10:57:46 AM »

Partzilla for bolt size.I read on one of the trike sites that the atc bolt was smaller diameter than trx.I may be interested in 2 of your bolts.I need to rebuild my suspension link and I can only find the rebuild kit for the trx.

DOUGLAS · « **Reply #12 on:** February 25, 2017, 07:15:06 PM »

any thing that you make that will be a service to the bike would sell. great idea. not all people have the equipment or the knowledge to make a bolt greaseable

mx250r91 · « **Reply #13 on:** March 02, 2017, 12:01:25 PM »

Not quite your run of the mill drilled bolt with a grease zerk. The only part that is 12mm is the threaded portion, the rest is 13.9mm to fit tightly with the bushings as mentioned earlier. Below shows the bolts, ATC on the left and TRX on the right with the ATC being 1mm smaller nominal diameter where the bushings ride. Anytime someone takes the time to reverse engineer and produce parts that are NLA from Honda is a great thing, good work!

rablack21 · « **Reply #14 on:** March 29, 2017, 01:16:14 PM »

Just an update. I have several bolts in process. I made 2 atc size bolts and 3 trx size bolts. They should be finished being machined this weekend. I am having a couple of them further heat treated, quenched, and tempered though I am undecided if they really need it. I will then take them to get zinc plated. If all goes well, I should have some finished one to show by the end of next week.