Cannondale has four level of stems...
C1 (lightest and premium price) 128g
C2 7000 series aluminum 121g
C3 6000 series alumnium 136g-141g
C4 (heaviest and lowest cost) 198g
Let's take a quick look...
Thanks to prendrefeu's post on weightweenies forums and choiboi's post on roadbikereview forums.
Cannondale C3 100mm stem with dual arm face clamps and steel bolts: 114.6g
Cannondale C3 100mm stem with full face plate clamp and steel bolts: 132g
To compare...The C1 reportedly is 128g, thus the C2 is supposedly lighter at 121g. However we can't be sure what type of bolts and faceplate were used.
Also te C2 is made from 7000 series aluminum and the C3 with 6000 series aluminum. The 7000 series is stronger due to a higher proportion of metal in its properties but the strength overall between the two in cycling applications will not be noticeable to a rider if it's the frame or stem. Aluminum bikes are often made with 6000 or 7000 series aluminum and no one notices a difference in the ride or strength of the frame or parts.
Conclusion: The C2 with dual arms (not the full face plate) at $20 - $25 is a light stem at an excellent price. It's even decent with the full faceplate which is about 9g heavier. I just received my stem, new stock and it weighed in at 141g as you can see below. So it seems weights may vary.
Conclusion: The C2 with dual arms (not the full face plate) at $20 - $25 is a light stem at an excellent price. It's even decent with the full faceplate which is about 9g heavier. I just received my stem, new stock and it weighed in at 141g as you can see below. So it seems weights may vary.
New C3 100mm full faceplate = 141g
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