Roadini - Seatpost Bolt/Nut (need to replace)

[Jay]

Hi everyone,

I guess I've over-tightened the bolt on my Roadini as it's spinning without much torque.  When I took out the bolt there were some loose threads that I peeled away.

I need to buy a new one and wanted to know if someone has the 'specs' so when I go to my hardware store I can find what I'm looking for (diameter, thread details?, length)...I know I can either measure this, or bring it in and figure it out, but it may be easier to have in advance and line of the specs.  Or maybe there are options?  I would still like to use a hex wrench (5) vs. another style of bolt head.

Thanks!

[Jason Noonievut]

I called Riv, spoke to Will, got the specs, placed an order from a local nuts and bolts company.

Because they’re stainless steel they have to be well greased!  I couldn’t find zinc coated.

On Jun 13, 2024, at 8:30 AM, Jay <jason....@gmail.com> wrote:

Hi everyone,

I guess I've over-tightened the bolt on my Roadini as it's spinning without much torque.  When I took out the bolt there were some loose threads that I peeled away.

I need to buy a new one and wanted to know if someone has the 'specs' so when I go to my hardware store I can find what I'm looking for (diameter, thread details?, length)...I know I can either measure this, or bring it in and figure it out, but it may be easier to have in advance and line of the specs.  Or maybe there are options?  I would still like to use a hex wrench (5) vs. another style of bolt head.

Thanks!

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[Brian Turner]

Good deal! Glad Will got you the info you needed.

From my experience, all the Rivs I’ve come across have taken M6x1 bolts, 20-21mm in length with 5mm hex heads (and matching nut of course).

For whatever reason, it’s harder than it should be to find this info online.

-Brian

On Jun 13, 2024, at 1:28 PM, Jason Noonievut <jason....@gmail.com> wrote:

I called Riv, spoke to Will, got the specs, placed an order from a local nuts and bolts company.

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[Jason Noonievut]

That’s right.  M6, 22mm, thread pitch 1.  Nylon insert hex lock nut.

On Jun 13, 2024, at 2:03 PM, Brian Turner <brok...@gmail.com> wrote:



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[Brian Turner]

I love my neighborhood hardware store, but they don’t always have the best selection of metric stuff. I’ve found Bolt Depot to be a really good resource online for metric bolts and bits. Plus, you usually don’t have to buy them in quantity like with McMaster-Carr.

-Brian

On Jun 13, 2024, at 2:14 PM, Jason Noonievut <jason....@gmail.com> wrote:



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[Chester]

Jay wrote:

That’s right.  M6, 22mm, thread pitch 1.  Nylon insert hex lock nut.

With the Clem L I bought, there was a weird defect in the hex nut, with it having extra metal material inside the donut hole, ruining/covering up some of the threads, and this ruined the initial threads of the bolt, as well, so there was no way to tighten the seat clamp with the bolt/nut pair it came with. 

Sorted it out after a couple trips to the local Ace Hardware and their Drawers o' Fasteners. They didn't have quite the right length (I had to get longer) so I didn't note the length of what I got, but ended up with M6 and thread pitch of 1 as well.

Turns out that the Clem Complete page specifies "It uses standard hardware store bolt (M6 x 22) and a 10mm hex nut." The Roadini page suggests that one could use M5 as well.

I ride the Clem sometimes and have been meaning to try to find a countersunk washer that is small enough diameter to fit inside but is yet tall enough that I could use a quick release and not scratch up the paint of the seat binder.

Chester

SF Bay Area

[Jason Noonievut]

The 22mm I found are on order and will only get here next week.  I found 20mm and 25mm locally and may pick these up and see how they go.  I’m going to get new nuts and washers too.

Im assuming with longer 25 vs 22 the screw/bolt can go through the nut and the locking feature of the nylon still works?

When I go to the local shop I’m going to show them the existing one, photos of the bike, and see what we can rig up!

Jason

On Jun 13, 2024, at 6:07 PM, Chester <cheste...@gmail.com> wrote:



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[Jay]

The company I had ordered the 22mm from contacted me to say they do not have that available, just the 20mm and 25mm.  Thankfully a local nuts/bolts shop had a 25mm and matching nut, so I picked up a handful, paid $5, and when the guy said he would make change I said coffee is on me!

The nut was a tighter fit than the original, but it eventually fit.  I used some loc-tite on the threads.  A few mm of extra bolt passed through the nut and looks fine overall.  I was able to torque it down snuggly without any strange noises (as I was getting before, every time I loosened and tightened the bolt).  Went for a 2.5 hour ride today, on some rough roads/trails, and it didn't move.  Hopefully this is it!