X4 is absolutely the best combination of strength and weight available. X4 offers precise steering and tracking for the ultimate i. They offer 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. Thomson is the state of the art in extruded aluminum the quality and craftsmanship is top notch. 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. The thomson 35mm x4 stem allows you to realize the benefits of stiffer forks and stiffer 35mm bars.
Strong but lightweight, thomson stems create the ultimate riding experience. Its underneath the stem in the steerer clamp cracked thomson x4 stem. That was a tall order given the popularity of the elite models. A careless mechanic didnt use a torque wrench on the previous one i had and overtightened the stem clamp resulting in stress crack. It should not break being used by someone of my stature. The x4 is absolutely the best combination of strength and weight available. X2 offers precise steering, tracking, and more control while riding, all wrapped up in a beautiful design. The thomson x4 stem allows you to realize the benefits of stiffer forks and stiffer 31.
I ride x4 stems on both of my bikes and have never had issue 1. Enduro and downhill riders can run thomson confidently, yet x4 is light enough for cross country and cyclocross. They offer precise steering tracking and more control while riding all wrapped up in a beautiful design. If this has occurred and you continue using the stem, the entire handlebar clamping boss may tear or snap off. The legendary thomson elite in a downsized clamp version for road use. The design team for the new thomson x4 had a tough goal. The body of the stem is machined from one healthy chunk of 7000 series aluminum for the ultimate in stiffness and durability.
There are some very minor marks on it but there is no damage or wear that could affect performance anywhere. X4 offers precise steering and tracking for the ultimate in control while riding. The thomson elite x4 stem is one of the best choices you can make for cross country or all mountain application. 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. Get access to exclusive discounts, the inside line on the latest gear, and personalized recommendations from our staff of avid riders. Cen iso 42105 the thomson 35mm x4 is based on proven design. The x2 features a lighter 2bolt handlebar clamp and is 50g lighter the thomson elite road stem. This is the only way to check if your stem has cracked in sympathy with the.
Hope the aluminium isnt too softtorque parameters arent too highlystrung. Ok for use with carbon bars always follow the mfrs. Thomson elite x4 stem the design team for the new thomson 31. Today, i search cracked thomson stem, and surprised with the result. One of the strongest stems in the industry, thomson stems are used by freeride and downhill riders with confidence. Stems are available for mountain biking, road biking, and bmx. Thomson x4 mountain stems feature smooth edges for carbon bar compatibility and use bolts that are custom heat treated with corrosion preventative plating. The thomson x4 is the leader in strength and stiffness. Although they are stiff i think that there must be a problem with machined vs forged caps. Buy your thomson elite x4 oversized mtb stem stems from. The x4 stem comes with a 3year warranty from the manufacturer. If you have overtorqued your x4 faceplate you must check bright light and dental pick.
After today i think ill pull both stems off and put on something a little more robust. Read its strength, weaknesses, find deals and pricing. 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. Theyve done it though the new x4 is stronger and lighter than before. The new thomson x4 for mountain and road allow you to realize the benefits of stiffer forks and stiffer 31. I had a thomson mountain bike stem faceplace crack about 3 months ago in a similar manner.
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 can be used on either road or mountain bikes. The stem is available in black or silver with a zero 90. 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. Its underneath the stem in the steerer clamp area, see pictures. 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 stem utilizes a more traditional split clamp design to save weight without sacrificing stability and control. 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 road stem allows you to realize the benefits of stiffer forks and stiffer 31. 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.
It features a traditional steerer clamp that is shaped to save weight and to be knee friendly. I dont know if this is relevant but its a good psa no matter what, but dont overtorque your bolts. 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. Earn up to 10% back in moosejaw reward dollars on every order. So i was swapping bars and stems on a couple of my bikes and noticed a crack on one of my thomson stems. Thomson x4 stem stem mtb ciclismo thom x4 90x10d bk 31. 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 thomson x2 features a lighter, 2bolt handlebar clamp. Light enough for cross country or road is only part of the story. Tracking, and more control while riding, all wrapped up in a beautiful design. The ultimate moneynoobject mountain bike stem choice for most people we asked, thomson s x4 really is an elite piece.
With two bolts instead of four it shaves grams but still provides similar stiffness to the mtb elite stem. So i did some searching and found others with the same failure. X4 offers precise steering, tracking, and more control while riding, all wrapped up in a beautiful design. Here are the top 5 favorite mountain bike stems as determined by singletracks members worldwide. 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.
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