Out of a bunch of carbon and alloy stems, the thomson x4 took second overall being bested only slightly the shimano pro vibe sprint version seen on. The x4 stem comes with a 3year warranty from the manufacturer. Consider one of these bike stems from race face, thomson, renthal, or enve if youre looking to upgrade this necessary but often overlooked mountain bike component. Thomson x4 stem stem mtb ciclismo thom x4 90x10d bk 31. With two bolts instead of four it shaves grams but still provides similar stiffness to the mtb elite stem. The thomson x4 is the leader in strength and stiffness. The legendary thomson elite in a downsized clamp version for road use. I had one of those thomson x2 stems develop a crack in the the top hole of the face plate, parallel to the bolt hole. I had a thomson mountain bike stem faceplace crack about 3 months ago in a similar manner. Read its strength, weaknesses, find deals and pricing. The x4 features a sculpted stem, sleek clamp bolts, and is made with 7000series aluminum alloy to ensure torsional stiffness and precise steering. That was a tall order given the popularity of the elite models. Ok for use with carbon bars always follow the mfrs.
Tracking, and more control while riding, all wrapped up in a beautiful design. A careless mechanic didnt use a torque wrench on the previous one i had and overtightened the stem clamp resulting in stress crack. The thomson x4 stem allows you to realize the benefits of stiffer forks and stiffer 31. The x4 incorporates a new steerer clamp design that shaves 20 grams, and of course, the beautiful design and machine work that have made thomson famous, with a kneefriendly clamp and no welds to break.
The thomson x4 is stronger and 30 grams lighter than the thomson elite 25. Lighter than its predecessor by 30 grams, the x4 stem is also strong. This is the only way to check if your stem has cracked in sympathy with the. Its underneath the stem in the steerer clamp area, see pictures. Bringing you an excellent combination of strength and low weight, thomson s elite x4 model is strong enough for downhill and enduro use, yet also light enough for cx and cyclocross riders too. Mizek thomson sets the standard for quality and performance for stems and this one is no exception. It should not break being used by someone of my stature.
X4 offers precise steering, tracking, and more control while riding, all wrapped up in a beautiful design. This stem has been used but it is still in great condition. If you have overtorqued your x4 faceplate you must check bright light and dental pick. Theyve done it though the new x4 is stronger and lighter than before. Compared to the enve stem on my other whip the thomson stem feels stiffer and more precise while remaining comparable in weight. The thomson x2 features a lighter, 2bolt handlebar clamp. The x4 is absolutely the best combination of strength and weight available. Hope the aluminium isnt too softtorque parameters arent too highlystrung. The thomson x4 stem utilizes a more traditional split clamp design to save weight without sacrificing stability and control.
The thomson elite x4 stem grew out of the legacy of the thomson elite line. Made from a solid, onepiece block of 7000series aluminum, the x4 combines exceptional strength with light weight for durable, solid steering control to tame the toughest trails. Severely disappointed in a product thats supposed to be unbreakable. It features a traditional steerer clamp that is shaped to save weight and to be knee friendly. Although they are stiff i think that there must be a problem with machined vs forged caps. The thomson x2 road stem allows you to realize the benefits of stiffer forks and stiffer 31. After today i think ill pull both stems off and put on something a little more robust. There are some very minor marks on it but there is no damage or wear that could affect performance anywhere.
X2 offers precise steering, tracking, and more control while riding, all wrapped up in a beautiful design. Today, i search cracked thomson stem, and surprised with the result. Light enough for cross country or road is only part of the story. So i was swapping bars and stems on a couple of my bikes and noticed a crack on one of my thomson stems. X4 offers precise steering and tracking for the ultimate i. Enduro and downhill riders can run thomson confidently, yet x4 is light enough for cross country and cyclocross. The design team for the new thomson x4 had a tough goal. I ride x4 stems on both of my bikes and have never had issue 1. This is the only way to check if your stem has cracked in sympathy with the overpressure on the faceplate. The elite x4 mountain stem is instantly recognizable because of thomson s legendary style, and with strength to spare, this stem is more than just a pretty face. This kit will only fit thomson elite x4 stems for 31.
The thomson 35mm x4 stem allows you to realize the benefits of stiffer forks and stiffer 35mm bars. If this has occurred and you continue using the stem, the entire handlebar clamping boss may tear or snap off. Its underneath the stem in the steerer clamp cracked thomson x4 stem. Stems are available for mountain biking, road biking, and bmx. X4 offers precise steering and tracking for the ultimate in control while riding. They offer precise steering, tracking, and more control while riding, all wrapped up in a beautiful design. Cen iso 42105 the thomson 35mm x4 is based on proven design. X4 is absolutely the best combination of strength and weight available. I was just doing a normal xc ride and i go to wipe my bike down and i found a 2 in crack on the underside of them stem.
The body of the stem is machined from one healthy chunk of 7000 series aluminum for the ultimate in stiffness and durability. Earn up to 10% back in moosejaw reward dollars on every order. They offer precise steering tracking and more control while riding all wrapped up in a beautiful design. The new thomson x4 for mountain and road allow you to realize the benefits of stiffer forks and stiffer 31. Thomson elite x4 stem can be used on either road or mountain bikes. The thomson elite x4 stem is one of the best choices you can make for cross country or all mountain application.
The x2 features a lighter 2bolt handlebar clamp and is 50g lighter the thomson elite road stem. The face plate has cracked where the bottom bolt is located after a few hundred miles and it is showing cracking appearing where the top bolt is located. One of the strongest stems in the industry, thomson stems are used by freeride and downhill riders with confidence. Before it cracked, it creaked from day one and it was installed by a reputable bike shop that uses a torque wrench. Thomson elite x4 stem the design team for the new thomson 31. I dont know if this is relevant but its a good psa no matter what, but dont overtorque your bolts. Thomson is the state of the art in extruded aluminum the quality and craftsmanship is top notch. Strong but lightweight, thomson stems create the ultimate riding experience. The ultimate moneynoobject mountain bike stem choice for most people we asked, thomson s x4 really is an elite piece.
Thomson x4 mountain stems feature smooth edges for carbon bar compatibility and use bolts that are custom heat treated with corrosion preventative plating. Here are the top 5 favorite mountain bike stems as determined by singletracks members worldwide. Buy your thomson elite x4 oversized mtb stem stems from. Get access to exclusive discounts, the inside line on the latest gear, and personalized recommendations from our staff of avid riders.
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