Renthal Prototype Direct Mount Stem - Leogang WC

Jun 10, 2011 at 8:23
Jun 10, 2011
by Mike Levy  
 
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Leogang Austria - World Cup. Prototype Renthal Stem. Sam Hill will be on this all week.
Our man on the scene, Fraser Britton, spotted this trick looking prototype Renthal direct mount stem bolted to the front of Sam Hill's Specialized Demo race bike.

Not much is known at this time, but here's what we do know:

- Fits the standard direct mount stem bolt pattern
- Seems to have two length options, with one of them likely to be 50mm
- Two piece, horizontally split design
- Availability: Late 2011
- Weight: unknown
- Price: TBD

Pinkbike's take: Renthal isn't quite ready to release any details on their new prototype stem, simply stating that it may see production later this year, but that the final product may or may not look like the one in the photo above. The unit on the front of Sam's bike looks to be far from a rough prototype though, and we're willing to bet that the final version will closely resemble Sam's stem. Not surprisingly, Renthal has used the same two piece, horizontally split design that they employ on their very light Duo Stem that they claim allows them to remove any and all unneeded material. The prototype stem's bar clamp also uses the same upright "U" shape as used on their standard stem. Stay tuned Pinkbike for more information and a closer look once we get our hands on a production version.


Lets hear what you think of the prototype Renthal stem bolted to the front of Sam's bike - put those thoughts down below!


Check out the Renthal website to see their current lineup.
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33 Comments

  • + 4
 the thing i love about a DM stem is that you can easily remove it and the bars together and stick in a bike bag without worrying about getting the bars back in the same position as before. looks like this new design loses that convenience.
  • + 1
 if you keep both front bolts tight, you should be fine.
  • + 1
 Actually, thinking about it you can completely remove the bolts farthest away from the stem, and just back off the 'middle' two bolts so that they clear the threads on the top crown, but still bite into the lower half of the stem, thus keeping the bars in place via 4 bolts unless I'm very much mistaken. Hope that helps as I can't wait until they hit the shops!
[Reply]
  • + 1
 would the horizontal split be stronger than the vertical we have now ? I like the look of it, very simple and looks good too.... With Sam's name on it, it will be selling like the handlebar now. I wouldn't mind to try it on too...
  • - 2
 does it not also look like its comprises of three split parts? Also if it has two length adjustments then in the longest reach setting the lower (3rd part) would have the fixing bolt partially showing due to the chamfered edges and therefore, may not give a strong connection against the upper fork crown?
  • + 1
 @scotlanddownhill i'm with you, i'm confused with that third part down there... i dont know what you mean with the "strong connection" part, i dont think that third part makes it weaker, but neither know it's function...
  • + 0
 I'm thinking the aluminum part just above upper crown is just to raise the bars. Notice how low "angle" the stem has! It's easier to rise/lower your bars with four stem bolts than mes with loosening crown and there fore messing headset bearing tightness. It's best to keep the crowns as close as possible to headtube and adjust elsewhere anyway and this allowing it. The filling part will probably work with other stems too.. Who's first to make it for the aftermarket? Hmm.. I happen to have some 8mm thick 7075 alu..
[Reply]
  • + 1
 Seems like it would be kind of a pain to snug up. When tightening a face plate you should use a star pattern or similar, so on this would that mean tightening all 6 bolts, one by one a little at a time?
  • + 1
 My truck has 6 lugs per wheel. 4 bolts is just an X
[Reply]
  • + 1
 Is it just me or does it seem like it would be a major dick around because you have to hold your bars while you line up the direct mount bolts...? Could be an idiot over thought on my part but that's what it looks like
  • + 1
 you could line up the direct mount bolts with 2 front bolts tight enough to hold the bars in place
  • + 1
 I guess that would make sense
[Reply]
  • + 1
 People say they dont like the bars because of the colour but once fitted they look smart, same as the DM Stem i think will look pretty cool. Cant wait to get mine.
  • + 3
 I could understand not liking the color of the bars if they only came in purple or something. People are way too pick y about bike color these days.
  • + 2
 Classic renthal color on the bars man , I would love to have them on my bike
[Reply]
  • + 2
 mm dont think id be to keen on the split design, just seems like abit of a pain to do it all up
[Reply]
  • + 1
 I don't think I'm a fan of that split design that spans the entire length of the stem. But that's just me.
[Reply]
  • + 1
 not sure i like the colour of one half being different to the other but wouldnt say no to it
  • + 1
 But it's just a proto Smile
  • + 1
 Maybe, but I have the Renthal Duo single crown stem and it is the same colour-way. Black on Top, Muted Gold on bottom. Looks sharp on the bike. Very nice machining, Stiff and light. Happy I am. michael
[Reply]
  • + 1
 looks like a great idea to reduce weight. i guess we'll see if its strong enough if sam continues to use it for his race run
[Reply]
  • + 3
 Its a stem, Yay!
[Reply]
  • + 2
 Sick, Renthal rocks.
  • + 3
 agreed. renthal, nuff said.
[Reply]
  • + 1
 i would defiantly ride one!
[Reply]
  • + 1
 can anyone say there is a lift kit on there
[Reply]
  • + 1
 looks so badass
[Reply]
  • + 1
 nice stem! I like it!
[Reply]
  • + 1
 me me me!!! looks sick
[Reply]
  • + 1
 I like, i want..
[Reply]

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