Thudbuster + Revelate Designs Seat Bag

[tdurack]

https://www.revelatedesigns.com/blog/index.cfm/2013/10/24/Thudbuster-seatposts-and-Packs

"We're just going to run through the combos, before that however, we want to note that the rear saddle clamp bolt is quite nasty on bags. If left un-treated this bolt WILL WEAR A HOLE IN YOUR BAG. We recommend replacing it with a smooth head bolt, or abundant use of a file to round off the sharp teeth."

Anyone done this? Looks like an m5x35mm.

Tim:>

[Kiwi Pete]

Hi Yes
I filed the sharp teeth off a little!
Would next time just replace the bolt, as still worn the seat bag a little.

All the best

[Alaskamatt]

I replaced the bolt. It's 5x something more than 30. Longest I had available to me was 5x30 and it works.

[falkenjaeger]

It can be an issue indeed but I realized it before it was too late. I used a piece of an old tire between the bolt and the viscacha and fixed the thire with two zip ties around the stem. Works pretty good so far.

[tdurack]

For the record, Cane Creek said: "Yes you can replace it with a round head M5x35 but it does use a orbital washer and bolt head, to keep the load on the bolt head even. So you will want to try to find a bolt with an orbital head. Or you can try padding the current bolt with a wrap of old tube or foam."

[trailhead]

Another thing to consider is clearance between the bottom of the bag and the wheel. My bike has a small frame and as the seatpost went through its travel, the bag would rub against the wheel.

[sherpaxc]

Mine did that too, but I solved that issue by running an extra stra through the seat rails and around the bag and cinched it up real tight. Winner winner...

[Smithhammer]

I put one of these little plastic screw protectors (cheap and available at just about any hardware store) on mine. Works great.