Aluminium frame quality difference
#26
Senior Member
Joined: Dec 2012
Posts: 399
Likes: 2
From: Huntington Harbor, CA
If the one is riding with less than 100 watts (<2 watts/kg), probably not much.
>300 watts or 4 watts/kg, most likely very noticeable.
#29
Rhapsodic Laviathan

Joined: Jan 2013
Posts: 1,053
Likes: 144
From: Louisville KY
Bikes: Rideable; 83 Schwinn High Sierra. Two cruiser, bmx bike, one other mtb, three road frames, one citybike.
#32
Senior Member
Joined: Apr 2008
Posts: 1,145
Likes: 83
From: Salt Lake City, UT (Formerly Los Angeles, CA)
Bikes: 2008 Cannondale Synapse -- 2014 Cannondale Quick CX
I have a Cannondale Synapse Aluminum frame from 2008. If I were to pick things to change about the bike the frame would be the last piece to go. It's a great frame. I can only assume they've gotten better in the 10 years since it was manufactured. After thousands of miles and many other components that have been replaced for wear or upgrade, the frame has a few paint chips and scuffs, but no dents or signs of needing replacement. I ride in hilly conditions. I ride at night often, and occasionally even with good lights I fail to spot road hazards. The frame endures. I had a peak weight of 215 and am now at 184; the frame handled both ends of that spectrum well. I toss a Tubus Fly Evo rack on the back and load up with my laptop and a change of clothes sometimes to commute. The frame handles the load fine. But when I want to be nimble, it's just fine too.
I suspect my next road bike will be CF. But I also think I'll always want to have an aluminum frame bike around too.
I suspect my next road bike will be CF. But I also think I'll always want to have an aluminum frame bike around too.
#33
Banned
Joined: Jun 2010
Posts: 43,586
Likes: 1,380
From: NW,Oregon Coast
Bikes: 8
It's Just Business..
After making bikes for Specialized, for years, Merida bought into their customer company,
Merida has enough production capacity left over to make more under their own name too,
and sponsor bikes for pro teams too, under both brand names..
....
Merida has enough production capacity left over to make more under their own name too,
and sponsor bikes for pro teams too, under both brand names..
....
#37
Senior Member
Joined: Aug 2005
Posts: 901
Likes: 32
From: NYC
actually the shifters are mounted on the handlebar. unlikely to take any damage in a spill.
I am looking at the frame design not the build.
components can always be changed.
it would be interesting if the frame had downtube shifter bosses.
I am looking at the frame design not the build.
components can always be changed.
it would be interesting if the frame had downtube shifter bosses.
#38
Senior Member
Joined: Feb 2017
Posts: 773
Likes: 34
From: Merry Old England
Bikes: Muddyfox Evolve 200, Bicycles4u Paris Explorer, Raleigh Twenty Stowaway, Bickerton California, Saracen Xile, Kona Hoss Deluxe, Vertigo Carnaby, Exodus Havoc, Kona Lanai, Revolution Cuillin Sport, Dawes Kingpin, Bickerton, NSU & Elswick Cosmopolitan
Fuji-ta
#39
Senior Member
Joined: Dec 2009
Posts: 9,563
Likes: 736
From: Melbourne, Oz
Bikes: https://weightweenies.starbike.com/forum/viewtopic.php?f=10&t=152015&p=1404231
The best aluminium frame manufacturers have abandoned 7005 like Giant and Merida a while ago. Their entry level aluminium frames tend to be 6061 now and use 6066 (Merida) and 6011 (Giant) for their premium aluminium frames. I don't think fuji-ta the world's biggest high quality aluminium frame manufacturer uses 7005 now or if it does its for specialist orders, they use 6069 for their premium frames. Lastly I remember reading on alibaba a factory that stated it now made high quality aluminium frames of 6061 and had stopped making inferior 7005. On face value 7005 is stronger but 6061 allows easier hydroforming and shaping of the frame so can more easily localise in the frame strength and flexing to improve it's overall performance. I believe 7005 tends to be more brittle and fatigue more. It naturally air hardens over time faster making it more brittle even without use. 7005 can have a higher strength to weight ratio but beyond that I think most of the positives belong to 6061.
#40
I think some of the Cannondale bikes coming to Europe were assembled in Vietnam sometime ago and possibly Cambodia now this is to avoid EU anti-dumping duty. Cambodia is the biggest exporter of bikes to Europe followed by Taiwan I think but most of the components are made in mainland China but it depends on the price point. Fuji-ta are a huge producer of both complete bikes (20 million a year) and certified frames to be assembled elsewhere in the world including low cost countries in the far east like Cambodia and Vietnam. My point is a bicycle can have a frame made in mainland China and be assembled in Taiwan or assembled in Cambodia with basically the same frame. Looking at fuji-ta site the first page has a video clearly stating Cannondale as the first brand. Cannondale is a Dorel brand. Taiwan is seen as the highest quality bikes in the world nowadays so connecting your brand with Taiwan is a good thing. Having your final bike assembled in Taiwan is seen as a good thing. Wouldn't surprise me though if top end Cannondale frames are made in Taiwan and lower end frames are made in mainland China this is a formula used by many western brands that don't manufacture frames themselves now.
Fuji-ta
Fuji-ta
More likely, they are still welding in Tainan - where I live - and using Fuji Da as an assembler.
Yes. I saw the video.
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