I'm Neutral about Carbon
#3
Mid Tour!
Joined: Oct 2016
Posts: 569
Likes: 4
From: Soon back in Edmonton Alberta
Bikes: Marin Muirwoods Racked out for this years Tour, Norco Indi 4 racked out from last years tour, Giant Defi II for week-end ripps.
#16
Sunshine
Joined: Aug 2014
Posts: 18,699
Likes: 10,236
From: Des Moines, IA
Bikes: '18 class built steel roadbike, '19 Fairlight Secan, '88 Schwinn Premis , Black Mountain Cycles Monstercross V4, '89 Novara Trionfo
How is it more environmentally friendly? At the manufacturing point? At the end point? Overall in every way measurable?
What i have read is this-
- it takes 14 times more energy to create a CF frame vs a steel frame.
- steel and aluminum frames and components can be recycled. There is no established recycling process for CF frames or components.
- CF doesnt break down over time due to the very properties which make it so appealing as a finished product.
There are steel frame bikes still in use which are 50 years old. Millions of 20-40 year old steel frame bikes are still able to be used in the US alone. Seriously- millions.
At what year of use does a steel frame catch up to carbon?...after 10 years? 20?
I am genuinely interested in this topic so please link specifics showing in what way(s) metal frames are environmentally worse, and measurably how much worse they are.
Really- Worse in terms of water use at the point of manufacturing? Worse in terms of pollutants released durong manufacturing? Worse how?
#18
Senior Member
Joined: Dec 2005
Posts: 800
Likes: 4
From: Portland, OR
I am not disagreeing, I have simply never seen a good study to back up your comment.
How is it more environmentally friendly? At the manufacturing point? At the end point? Overall in every way measurable?
What i have read is this-
- it takes 14 times more energy to create a CF frame vs a steel frame.
- steel and aluminum frames and components can be recycled. There is no established recycling process for CF frames or components.
- CF doesnt break down over time due to the very properties which make it so appealing as a finished product.
There are steel frame bikes still in use which are 50 years old. Millions of 20-40 year old steel frame bikes are still able to be used in the US alone. Seriously- millions.
At what year of use does a steel frame catch up to carbon?...after 10 years? 20?
I am genuinely interested in this topic so please link specifics showing in what way(s) metal frames are environmentally worse, and measurably how much worse they are.
Really- Worse in terms of water use at the point of manufacturing? Worse in terms of pollutants released durong manufacturing? Worse how?
How is it more environmentally friendly? At the manufacturing point? At the end point? Overall in every way measurable?
What i have read is this-
- it takes 14 times more energy to create a CF frame vs a steel frame.
- steel and aluminum frames and components can be recycled. There is no established recycling process for CF frames or components.
- CF doesnt break down over time due to the very properties which make it so appealing as a finished product.
There are steel frame bikes still in use which are 50 years old. Millions of 20-40 year old steel frame bikes are still able to be used in the US alone. Seriously- millions.
At what year of use does a steel frame catch up to carbon?...after 10 years? 20?
I am genuinely interested in this topic so please link specifics showing in what way(s) metal frames are environmentally worse, and measurably how much worse they are.
Really- Worse in terms of water use at the point of manufacturing? Worse in terms of pollutants released durong manufacturing? Worse how?
#19
Senior Member

Joined: May 2006
Posts: 859
Likes: 56
From: Reno, NV
I've really questioned how much waste is produced manuf carbon frames. I know a lot of the companies use vacuum bags, so essentially a plastic bag for every component produced, which is tossed. It gets complicated since you have to look at the whole supply chain, soup to nuts. Steel seems better instinctively, but when factoring in large scale production, mining ore, shipping....who knows.
#21
2-Wheeled Fool
Joined: Sep 2016
Posts: 2,346
Likes: 680
From: New Hampshire
Bikes: Surly Ogre, Brompton
You can find a decent carbon bike on Craigslist. Many haven't been ridden 20 miles. People get them with good intentions, but the gold loses its luster when they actually have to work for it. Personally, a titanium bike is next up on my list.
#22
Junior Member
Joined: Mar 2017
Posts: 14
Likes: 0
From: Portland, Oregon
Bikes: Surly Long Haul Trucker
#24
Senior Member
Joined: Jan 2009
Posts: 489
Likes: 50
From: Way Out West
Bikes: carbon bamboo composite is the best
Steel has a high carbon footprint, as high CO2 coking coal is burned in the steel making process .Al uses a lot of electrical energy to refine, it was very expensive to make Alu until electrical power became plentiful. Carbon fiber sequesters carbon in the bike frame, it isn't emitted into the atmosphere as GHG gases.
#25
Joined: Jul 2007
Posts: 3,423
Likes: 55
From: Chapin, SC
Bikes: all steel stable: surly world troller, paris sport fixed, fuji ss
My steel frame is 40+ years-old. I rode it yesterday. In the extreme unlikely-hood that becomes unusable as a bicycle I throw it in the recycle bin.
It's hard for me believe that current carbon-frames will be ridden 40 years from now. The the landfill is where they'll end up
It's hard for me believe that current carbon-frames will be ridden 40 years from now. The the landfill is where they'll end up










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