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KOOTU Mountain Bike Handlebar Riser 31.8mm Adjustable Stem Riser

KOOTU Mountain Bike Handlebar Riser 31.8mm Adjustable Stem Riser

Regular price $29.99
Regular price $39.99 Sale price $29.99
Sale Sold out
Tax included. Shipping calculated at checkout.

Shipping & Return

  • Available countries: all over the world. (Except delay caused by force majeure)
  • Shipping way: UPS/EMS/DHL/DPD/ Special line and so on
Shipping to Average Delivery Time Gear Shipping Cost
United States 6-12 business days $4.99 (Free on orders $69+)
Australia 7-15 business days $4.99 (Free on orders $69+)
Asia 6-12 business days $4.99 (Free on orders $69+)
Middle East 10-15 business days $4.99 (Free on orders $69+)
Canada 10-15 business days $4.99 (Free on orders $69+)
Mexico 10-15 business days $4.99 (Free on orders $69+)
Israel 6-10 business days $4.99 (Free on orders $69+)
India 6-12 business days $4.99 (Free on orders $69+)
Brazil 20-35 business days $4.99 (Free on orders $69+)
Europe ca 10-12 business days $4.99 (Free on orders $69+)
  • If your country is not listed, please kindly contact us.

Shipping Information

  • Once your order has been placed, we'll send you a confirmation email with your order number. 
  • When your order has been shipped, we'll send you an email with a tracking number and a link that you can track it online. 
  • No Tariff will be required for our customers on the Standard shipping methods.

Processing Time

After we received your order. It usually takes 2-3 business days for production, assembly, debug, packing, and sent out. Because we want to make sure, each product is strictly inspected.

Cancel or Change Order

To cancel or change the order, please contact our customer service at within 24 hours. If the product has been shipped or you have received a shipping confirmation email, the order status cannot be modified.

Duties and Taxes Note:

  • Duties and taxes on shipments are legal requirements that must be settled before your shipment can be delivered and are based on both the type and value of the item(s) being shipped. These fees are mandatory government taxes and are not collected in any way by Kootubike. Shipping carriers may charge prepaid Tax and Duties to customs for package clearance and later collect from the recipient.
  • Tax free countries: All EU countries/US/RU/Japan/Singapore/Malaysia/Thailand/Qatar/UAE. 
  • MEXICO/CANADA: Tax around 30-90 CAD, buyer pay. 
  • Customers shall be held responsible for shipment pricing/charges due to shipment abandonment, rejection, undeliverable or return caused by the customs clearance process.
  • Please note: all international packages may be subject to duties and taxes. The limits for duty-free packages are established by your local customs authorities. Please check your local custom website for more information.

Contact Us


Adjustable stem riser for mountain bike

Solving the problem of riding position too agreesive which causing back pain or uncomfortable.

The stem can adjust angel ±85°, after adjustment , it can rise the height of the handlebar about 6-10 cm .
Completely solve the problem of back pain , you can riding the bike more comfortable on a better riding position.

Handlebar riser feature:

  • FOMTOR 0~60 Degree Adjustable Bike Stem for 31.8mm handlebar(1.25'')
  • Help to up or down the heigth of handlebar.Adjustable angle:  0° ~ 60° degree
  •  Help to make your bike very comfortable to ride.
  •  Light weight and durable.
  •  Constructed of high-strength CNC machined 6061 T6 aluminum alloy.
  •  Suitable for most road bike, mountain bikes, track bike, MTB, BMX, DH, etc.
  • -Easy installation, just connect up the original front fork stem. Four bolt bar clamp holds bar securely in position.

 Product details:

Bicycle Handlebar Riser Stem Adjustable Stem
The strongest, lightest and most secure adjustable bicycle stem ,with aluminum alloy strong and durable material
Aluminum alloy adjustable stem
mountain bike adjustable stem riser
31.8mm adjustable stem Bicycle Handlebar Riser Stem Adjustable Stem Mountain Bike Handlebar Riser
adjustable handlebar stem riser
adjustable handlebar stem


Please Note:

Please confirm the diameter of your handlebar is 31.8mm before you buy it.

road bike stem

mtb stem

70mm stem

For Road Bike

For Mountain Bike

For more other bike

View full details


Starting from the needs of riders, we are committed to providing riders with "professional carbon bikes with cost performance".

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  • Brand Story

    From German craftsmanship, 18 years of industrial manufacturing experience...

  • Free Shipping

    Kootu's mission is to make high-end carbon fiber bikes affordable for everyone

  • UCI Approved

    All road wheelsets are UCI Approved

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