Terra have revealed its new stem with a claimed weight of just 99 grams.
The Emblema stem is made by Terra a small Italian brand that produces steel hardtails in Arezzo, Italy. Terra's new stem is being produced using CNC machining to ensure they can focus on bulking up the design at high-stress areas and removing material where it is not needed. Terra say the Emblema is certified to ISO 4210-5 and it has passed all of the static lateral and frontal flexion tests it has faced.
Currently, the stem is available in one size with a 40mm length and a 35mm clamp but, Terra are looking to offer 30mm and 45mm lengths in the future. Although there is just one size, they do offer three anodizing options.
To get the lightest version of the Emblema stem you will have to hand over €149.95 (Around $181) but this includes titanium bolts and hits the scales at that claimed 99 grams. If you want something slightly less expensive, then there is the steel bolt version but, this will still cost you €119.95 (Around $145) for a claimed weight of 110 grams. You can find out more
here
Anyone remember the stem stiffness comparison demo at the Sychros booth? A small difference in weight made a large difference in flex.
Besides, once watched a guy behind me in Whistler break his stem clean off on a drop. Nightmare.
I'll save those 20 grams for somewhere practical like clothing- Pair of scissors and a couple of minutes for cut off sleeves and short shorts.
I also don't drink water, always dehydrated for optimal weight savings.
a 2x2x3" block of 7075 ~20USD
or
Funn Funnduro at 112g for $49?
You just spent $10.07 per gram of weight savings! High end stems always get me drooling, but the returns diminish so rapidly it's absurd.
-118G
MEC-its treated me well for a full season, although it only comes in blk
That’s a forged stem, which in my mind is a superior technique, and they’re easily found for $90 online. Only 31.8 tho, which is a good thing too. 35 makes for a too stiff setup. Nobody was suffering from flexy 31.8 bars.
3D machining would be when you have a curved surface and you are limited in your ability to rotate the spindle or part to cut it in a traditional sense, so you 3D or "scrub" that surface using only the radius at the end of the tool in very small step-overs using a fixed axis (no multi-axis rotation). It looks cool, and most bike parts use that technique intentionally to look nice, but sometimes it can be sort of a "I couldn't figure out how to cut this correctly" type of a situation. A good example of beautifully done 3D machining would be the front plate of a Deity Copperhead stem, or the finished pattern of an Absolute Black oval chainring. It adds nice texture when utilized properly.
In this situation, the surface that the handlebar clamp has has somewhat large step-overs, so it is reducing the surface area that is contacting the handlebar, and would definitely leave the indentation of that pattern on your carbon bars.
I've never once thought 'SHIT! this stem is heavy!'
I've also never once thought 'Hey, this would be a great part to save some grams on because if it fails I'll be OK.' Easton had a very ill fated and ultimately recalled magnesium road stem back in the day... we had a guy get some dental work after his failed - that's always the joke, but this actually happened.
I also have an I9 stem, and it's a lightweight thing of beauty, but its 100% vanity/bling.
Good recommendation.
How does it feel? That is, does it feel like a stem (something you don't think about because there's nothing wrong with it)?
77-store.com/en/One-Piece-Stem/1000335
Otherwise a pretty nice thing !
Added bonus is that's it's forged, not milled so much better strength to weight ratio.
One more bonus is that's it's much prettier (only 2 bolts on the faceplate which are invisible as they're tucked under the handlebars).
Finally, Newmen stem fits 31.8mm bars so you don't have to put up with overly stiff 35mm.
BMX learned its lessons with regards to cutting weight from stems almost a decade ago, how long is it going to be before we see a swathe of broken stems and equally broken riders in MTB?
I wouldn't want to cut corners on that little bit of alloy with the 4 bolts in it...
Nowadays there are several light options which are just as strong (Newmen, 77designs/WAO, Specialized, Reverse, possibly Syncros)
Are you selling or using?
Does it depend on your use? DH or Enduro
Total shite.
More material in stem clamping area and stronger bolt will both stretch less and clamp harder.
I’ve never seen a steer damaged from over clamping, have you?
The steer clamp bolt torque is likely defined by what they assume will be sufficient clamping force and not so much to deform the bolts and stem.
Which may not be enough to keep the bars from stem from twisting.
Handlebars should not twist in a crash. It can be difficult and time consuming to realign the handlebar, especially important in racing.
- you have absolutely zero engineering experience, do you?