Destroyed Silvio
- Thread starter bladderhead
- Start date
mzweili
Guru
must have crashed seriously.
I had a look at my Silvio 2 frame and it looks quit sturdy at this welded connection.
bladderhead
Zen MBB Master
He put one foot on the pedal. He took his other foot off the ground. The bike went over sideways, with him on it. Did not seem hurt at all.
BentAero
Well-Known Member
Those close-up photos are so abstract, I can't tell what I'm looking at.
Regardless, I'd shoot Jim a PM or email and make him aware of it. A large part of my job is noticing clues that might develop into trends, and reporting them to our engineering and warranty staff at the parent company. On two separate occasions we (the USA staff) were the first to identify a problem that evolved into a world-wide product recall.
I'm not saying that is what's happening with your frame, it may be a totally isolated incident, but it's important to let Jim know so he can record it.
Regardless, I'd shoot Jim a PM or email and make him aware of it. A large part of my job is noticing clues that might develop into trends, and reporting them to our engineering and warranty staff at the parent company. On two separate occasions we (the USA staff) were the first to identify a problem that evolved into a world-wide product recall.
I'm not saying that is what's happening with your frame, it may be a totally isolated incident, but it's important to let Jim know so he can record it.
mzweili
Guru
If the bike didn't hit something hard on the road, I don't see how this aluminum part could fail like that.
There was maybe a hidden material weakness, micro-crack or something like that. It looks like a twisting force caused the part to fail.
A closer look at the broken surface should give more information.
I hope Cruzbike will replace your frame.
ReklinedRider
Zen MBB Master
Glad you were not riding it and zipping downhill at 30mph+ when that gave way!
super slim
Zen MBB Master
How heavy was this guy???
And did he sit on the bike when it was leaned over at 45 degrees, as I can not see how a twisting fracture like shown could have occurred?
Has the bike been transported in a plane recently in a cardboard box, as I have seen how Aussy baggage handlers THROW bags into the hold of a plane!
And did he sit on the bike when it was leaned over at 45 degrees, as I can not see how a twisting fracture like shown could have occurred?
Has the bike been transported in a plane recently in a cardboard box, as I have seen how Aussy baggage handlers THROW bags into the hold of a plane!
bladderhead
Zen MBB Master
He was not a big bloke. He was still on it as it hit the ground. I heard the crack. At that moment I could see that the seat was at a funny angle. He had difficulty getting up as the bars trapped his legs.
I have only rode it. The only time it was sent anywhere was when Cruzbike sent it to me.
If the pictures I posted reminded you of "this week's mystery object" then try these
I have only rode it. The only time it was sent anywhere was when Cruzbike sent it to me.
If the pictures I posted reminded you of "this week's mystery object" then try these
Attachments
super slim
Zen MBB Master
Thanks for a wider view photos, as I can see where the fracture occurred!
It looks like a tensile failure of the welded connection of the bottom stay to the frame
With the Silvio V2.0 (27 degree seat back) onwards the tensile load at this connection is 284 mm /198 mm = 1.44 times the rear wheel vertical load.
Have you been airborne very often when descending down steep hills?
What does the quality and size of the welding look like?
For my ANCIENT Silvio V1.0 (45 degree seat back) the tensile load is 138 mm / 360 = 0.38 time the rear wheel vertical load, so I am safe to get airborne lots of time with my light 110 kg engine on the bike.
It looks like a tensile failure of the welded connection of the bottom stay to the frame
With the Silvio V2.0 (27 degree seat back) onwards the tensile load at this connection is 284 mm /198 mm = 1.44 times the rear wheel vertical load.
Have you been airborne very often when descending down steep hills?
What does the quality and size of the welding look like?
For my ANCIENT Silvio V1.0 (45 degree seat back) the tensile load is 138 mm / 360 = 0.38 time the rear wheel vertical load, so I am safe to get airborne lots of time with my light 110 kg engine on the bike.
Maria Parker
Administrator
Hi Bladderhead. We're glad to be aware of this and would very much like to look at the frame and hear more details about the break. Look for an e-mail from me. Maria
Duly noted. We'll take it from here with bladderhead. This isn't a crack I've seen before.
Based on the story of this frame, this break is more likely caused by multiple falls to the side than from normal tensile forces at the weld.
Thanks for everyone's input.
Jim
Based on the story of this frame, this break is more likely caused by multiple falls to the side than from normal tensile forces at the weld.
Thanks for everyone's input.
Jim
bladderhead
Zen MBB Master
I replied to Maria's message offering a replacement frame. Thank you Cruzbike. What a great company, what a great offer.
super slim
Zen MBB Master
You cannot beat CLASS!!!
And a full commitment to the quality of their bikes!!!
Thank you Jim and Maria!!!!
And a full commitment to the quality of their bikes!!!
Thank you Jim and Maria!!!!
bladderhead
Zen MBB Master
Fedex say it is on its way
bladderhead
Zen MBB Master
Happy Christmas
Thank you Cruzbike! And it the new version! One-piece seat!
If any Parkers or Hollers etc are reading this, good packaging. I work in a freight shipping company. We all are continuously dumbfounded by the stupid packaging we see. What do the customers think we do with their stuff? Your stuff is well protected.
Now begins the slow process of disassembling the old one. I will send Cruzbike the frame and seat.
Thank you Cruzbike! And it the new version! One-piece seat!
If any Parkers or Hollers etc are reading this, good packaging. I work in a freight shipping company. We all are continuously dumbfounded by the stupid packaging we see. What do the customers think we do with their stuff? Your stuff is well protected.
Now begins the slow process of disassembling the old one. I will send Cruzbike the frame and seat.
Attachments
bladderhead
Zen MBB Master
The process was quite quick, actually. No problems. It took me to work and back. Very slowly over the speed-bumps.
