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Btwin Oversize Bike Stem 35 mm 31.8 mm diameter
Bike stem compatible with oversize handlebars (31.8 mm diameter) to improve your position or comfort as you ride. The 35 mm length helps improve the maneuverability of your bike.
Free shipping over $49
Final Sale: No returns or exchanges
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Free pickup
San Francisco, 735 Market St. Options
Select an available color and size to see options.
Product Videos
Product Features
Compatibility
For 1”1/8 (28.6 mm) steerer tube and oversize handlebars (31.8 mm).
Durability
6061 aluminum.
Optimized posture
Available in 60 mm, 90 mm, and 100 mm.
Weight
4.5 oz.
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Product Customer Reviews
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I needed to reduce the reach on my handlebars and this was perfect. Fitted it quickly and easily and works brilliantly.
Original stem on my sons bike was too much of a stretch for me whenever I used his bike which is more often than he does so bought this to make life more comfortable
Bought to shorten reach
I got this stem about a year ago due to putting wider bars on my bike. A shorter stem really helped with the handling. The stem is minimalist, but strong. Someone else said that they wouldn't use this for mountain biking...well, I can tell you that this has been on my bike for a year, done countless trails from blue to black as well as plenty of dirt jumps. Don't worry, it's solid, just make sure you don't over torque the bolts. That's normally the reason for failure.
Good stem that reduces reach and gives a more comfortable upright position. I would hesitate to put too much stress on the bars as the screws that hold bar clamps look undersized for the strain they are likely to experience. They also look too short and only engage the body to about half the depth of the holes. Bear in mind this is aluminium alloy and a small fine thread will strip easily if slightly over tightened or repeatedly turned. The trend may well be to slim down stems for appearance sake but I would prefer them to stay a bit more chunky for confidence. I would not use this stem on a mountain bike or with wide bars....probably OK for a trekking bike.
Fitted straight on to a Specialized Rockhopper Sport 2019 29" without any issues and has really sharpened up the handling against the 100mm standard stem, seems to be made well too, bolts went in nicely and torqued up without any roughness or cross threading
Performs well for the price
Outstanding for those who need the item
Best
Just buy it. You'll thank me.
Replaced this for marlin yethi MTB for short stem and works like a charm.
Good product.
Quality is good
good form price point, only available 35mm stem in my city
high quality stem for short reach.
Additional Product Information
Composition
Body: 100.0% Aluminium ; Screws: 100.0% Steel
Origin
Imported
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Btwin Oversize Bike Stem 35 mm 31.8 mm diameter
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Heavy products return policy
If you return a product you will receive a refund for the purchase price plus any applicable sales taxes, less any non-refundable charges.
Decathlon will cover all shipping costs associated with your return except for items excluded from our return policy such as bikes, basketball hoops, snowboards, surfboards, tents, and other larger / heavier items.
Return costs for heavy products:
| Weight Thresholds | Shipping within California | Shipping outside of California |
|---|---|---|
| > 9 lbs | $20.00 | $25.00 |
| > 30 lbs | $50.00 | $65.00 |
| > 100 lbs | $100.00 | $125.00 |
| > 200 lbs | $200.00 | $230.00 |
If you return a product at any of our store locations, we will gladly help you find the best alternative product or refund you on the spot.
