Lightest 35mm length stem

Discuss light weight issues concerning mountain bikes & parts.

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alexdi
Posts: 27
Joined: Tue Dec 20, 2016 5:38 pm
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by alexdi

I bought the Grey stem in 40mm for a trail bike. It was 69g on my scale. Nicely machined, no sharp edges, typical matte finish. The Grey logo only goes one way (-6D), so with it flipped on my bike, it's upside-down. Fortunately it's only 1cm long.

I have no reservations about strength or stiffness at this length. I don't notice any additional deflection relative to a massive 220g stem when wrenching my 800mm carbon bar around more than I would on a trail. The fasteners are steel and capable of far more torque than they need.

On that point-- Grey specifies 5nm. For the attachment to my aluminum steerer, that's fine. For the bar, 3nm on my wrench is plenty. While the front face is widely spread and has more surface area than most of my stems, the rear face probably has 30% less. I suspect 5nm pressing into that surface would damage many ultralight carbon bars. (A beefy Chinese bar didn't care, but there was a bit of an outline of the stem's shape.)

Wren's stem looks the same (and might actually be the same, it looks identical in a matte finish). I also see a number of high-end MTB stems on Amazon with similarly narrow rear facings, so maybe I'm just overly cautious.

It's very solid at 3nm and there's no probability of loosening for bolts this narrow, so pending a trail test, I'd give it a tentative thumbs up. Just make sure you've got a T20 driver.

greatstewie
Posts: 8
Joined: Fri Jun 10, 2022 3:11 pm

by greatstewie

thegolfather wrote:
Mon Apr 11, 2022 6:23 am
1llum4 wrote:
Mon Jan 17, 2022 5:41 pm
Here are a few option:

Extralite 40mm 54g
Newmen Evolution SL 40mm 84g
Enve M6 35mm 94g
Intend Grace FR 82g
Just ordered me the Extralight 40mm 54g
hey can u post the link to the stem?

by Weenie


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thegolfather
Posts: 31
Joined: Fri Jun 25, 2021 6:40 am
Location: Guam

by thegolfather

greatstewie wrote:
Fri Jul 22, 2022 2:26 am
thegolfather wrote:
Mon Apr 11, 2022 6:23 am
1llum4 wrote:
Mon Jan 17, 2022 5:41 pm
Here are a few option:

Extralite 40mm 54g
Newmen Evolution SL 40mm 84g
Enve M6 35mm 94g
Intend Grace FR 82g
Just ordered me the Extralight 40mm 54g
hey can u post the link to the stem?
www.bikeonline.it

greatstewie
Posts: 8
Joined: Fri Jun 10, 2022 3:11 pm

by greatstewie

thegolfather wrote:
Tue Jul 26, 2022 5:50 am
greatstewie wrote:
Fri Jul 22, 2022 2:26 am
thegolfather wrote:
Mon Apr 11, 2022 6:23 am
1llum4 wrote:
Mon Jan 17, 2022 5:41 pm
Here are a few option:

Extralite 40mm 54g
Newmen Evolution SL 40mm 84g
Enve M6 35mm 94g
Intend Grace FR 82g
Just ordered me the Extralight 40mm 54g
hey can u post the link to the stem?
www.bikeonline.it
ok ty

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