Cracked seat back on early Quest
- Thread starter bret
- Start date
DavidJL
Well-Known Member
If cracks aren't too long, could try locating the tip of each crack and drilling a stress relief hole to keep crack from spreading. Due to my extensive modding, I had this issue. I also took two strips of aluminum and joined the two halves of the seat together, using the water bottle holes and drilling new holes to attach the strips. Guess I need to take a pic of this.
Dudley
Member
I have the same problem on my Q3. The cracks showed some time ago but I didn't do anything. I just checked and it has got a lot worse. I'm going to have to fix it asap. I was thinking of drilling holes closer to the centre of the seat but I'll check with my local bike shop.
I just checked my partner's Q2 and it has the start of the cracks - about 1 cm long but still just hairline.
I just checked my partner's Q2 and it has the start of the cracks - about 1 cm long but still just hairline.
Attachments
super slim
Zen MBB Master
He is definitely NOT a Princess!
castlerobber
Zen MBB Master
MrSteve
Zen MBB Master
This reminds me:
When I assembled my bike, I added a strip of innertube to the seat assembly.
It was sandwiched between the two halves of the seat, where they are bolted together.
Also, the assembled seat sat on rubber strips which insulated it from the steel.
Why?
One of my old jobs was motorcycle test rider and I learned that both aluminum and plastic
accessories almost always crack around their mounting holes.
Mounting the accessories on rubber or urethane really really really helped.
(I ride on my own homebuilt composite seats for both custom comfort and practicality:
The stock aluminum seats look pretty mounted on the garage wall.)
You guys now owe me money.
When I assembled my bike, I added a strip of innertube to the seat assembly.
It was sandwiched between the two halves of the seat, where they are bolted together.
Also, the assembled seat sat on rubber strips which insulated it from the steel.
Why?
One of my old jobs was motorcycle test rider and I learned that both aluminum and plastic
accessories almost always crack around their mounting holes.
Mounting the accessories on rubber or urethane really really really helped.
(I ride on my own homebuilt composite seats for both custom comfort and practicality:
The stock aluminum seats look pretty mounted on the garage wall.)
You guys now owe me money.
next time try chainring bolts, super slim heads (in fact you can even counter sink them) and really wide diameter so they spread the stress very well too..
Last edited:
Thanks Eric sadly I don't think they will do much for the carbon..I'm digging the safety wire sutures....
This is another of my ''best proud of you F £cku&s'' that may work better on the carbon..
Thanks Eric sadly I don't think they will do much for the carbon..I'm digging the safety wire sutures....
This is another of my ''best proud of you F £cku&s'' that may work better on the carbon..
Umm for some reason I can not upload the picture, I made this about 12 years ago and still holding, after at least 130.000 since the bubu
Sorry, no picture, no links, I guess I'm to new, I show you later but I think it will work very well, silly strong..
