Renthal Duo Split Mountain StemRenthal's revolutionary Duo stem combines high strength with ultra low weight. The stem is horizontally divided, allowing it to be machined in two pieces. This method gives unrestricted access to the stem core, enabling weight to be reduced to the absolute minimum, without compromising strength.
|Model||Renthal Duo Stem|
|Material||6082 T6 aluminium alloy|
|Handlebar Clamp Size||31.8mm|
|Steer Tube Clamp Diameter||1 1/8" (28.6mm)|
Torque specs are a joke. I sent both of mine in to be replaced due to the squeaking and they sent me two more. Still squeaking like a pissed off mouse...
This is a really light stem for an AM/DH stem. The stem is fairly stiff as well. It does take a bit of extra time to set up since 2 of the bolts are on the bottom and the 2 on the steer tube are separated but once you get it in place it's good to go and reassuring that your weight and pressure is pushing down on the bottom cup instead of an open bolt flange. One issue is creaking. Mine creaked until I took it back off and added some grease between the 2 halves and cinched it back down by the bottom bolts before ever touching the rear bolts. Has been creak free for 3 rides now.
I am usually not easily impressed, but in the case of this stem I am glad I was. This is a product that is rare today; it is better than advertised. The first thing I noticed when I opened the shipping box is it just looks well made. It is a very impressive looking stem. When I took it out of the box, I was pleased with how light it felt. Installation is actually not as bad as it appears. Put the bottom section on then attach the top part with the handlebar. Feels strong in use and seems exceedingly steady regardless of XC or FR use. Way to go Renthal!!!
I love this stem, low profile with just right amount of rise. Perfect for DJ , DH setup. You won't be disappointed when you snag one of these.