Skip to main content

Bicycle Stem Extension 31.8 mm Bicycle Handlebar Stem ±85° Adjustable 90/110/145 mm MTB Ahead Stem Handlebar Riser Bicycle Handlebar Extender for Bicycle, Road Bike, MTB, BMX, Cycling, Black

$51.71

  • [3D Forged + CNC Made] This bicycle handlebar stem is forged from high quality aluminum alloy, durable and resistant to deformation and rust. The CNC machined surface is comfortable to grip without hurting hands. Matt black is simple and stylish.
  • [Fits most bicycles] Fork bore diameter: 28.6 mm. Handlebar bore diameter: 31.8 mm. Two hole spacing: 90 mm. Height increase: 60 mm. Universal bicycle handlebar stem fits most mountain bikes, road bikes, BMX etc. Note: Please measure your bike before purchase to make sure the stem raiser fits your bike.
  • ±85° adjustable stem: The adjustable MTB handlebar stem with precise scales helps to lift or lower the bicycle handlebar to relieve back and neck pain and other problems caused by incorrect handlebar height by adjusting the desired handlebar height. It offers you a more comfortable driving experience.
  • [Suitable for all ages] Mountain bike stems are the perfect choice for cyclists. Whether a teenager needs a height-adjustable handlebar for their growing body or a cyclist looking for a healthier and more comfortable ride, our road bike stem can meet your needs.
  • [Easy to Install] The Ahead stem is easy to install, just attach it to the original fork. The enlarged hex hole design ensures a perfect fit for the split structure, improves wear resistance and provides a strong guarantee for your safety when cycling. If you encounter any problems during use, please feel free to contact us.

Size:
31.8*90mm
Manufacturer:
SURIEEN
Part Number:
GN5B3M2
Isin:
IGEJF7TZ634Z

$51.71

In Stock

Sold by , Fulfilled by IBSPOT • Ships from US

IBSPOT Buyer Protection
  • Free 30-Day Returns
  • Full Refund for Damaged or Incorrect Items
  • Guaranteed Delivery or Money Back
  • Secure Checkout & Fast Support
scroll to top arrow
Bicycle Stem Extension 31.8 mm Bicycle Handlebar Stem ±85° Adjustable 90/110/145 mm MTB Ahead Stem Handlebar Riser Bicycle Handlebar Extender for Bicycle, Road Bike, MTB, BMX, Cycling, Black

Bicycle Stem Extension 31.8 mm Bicycle Handlebar Stem ±85° Adjustable 90/110/...

$51.71

  • [3D Forged + CNC Made] This bicycle handlebar stem is forged from high quality aluminum alloy, durable and resistant to deformation and rust. The CNC machined surface is comfortable to grip without hurting hands. Matt black is simple and stylish.
  • [Fits most bicycles] Fork bore diameter: 28.6 mm. Handlebar bore diameter: 31.8 mm. Two hole spacing: 90 mm. Height increase: 60 mm. Universal bicycle handlebar stem fits most mountain bikes, road bikes, BMX etc. Note: Please measure your bike before purchase to make sure the stem raiser fits your bike.
  • ±85° adjustable stem: The adjustable MTB handlebar stem with precise scales helps to lift or lower the bicycle handlebar to relieve back and neck pain and other problems caused by incorrect handlebar height by adjusting the desired handlebar height. It offers you a more comfortable driving experience.
  • [Suitable for all ages] Mountain bike stems are the perfect choice for cyclists. Whether a teenager needs a height-adjustable handlebar for their growing body or a cyclist looking for a healthier and more comfortable ride, our road bike stem can meet your needs.
  • [Easy to Install] The Ahead stem is easy to install, just attach it to the original fork. The enlarged hex hole design ensures a perfect fit for the split structure, improves wear resistance and provides a strong guarantee for your safety when cycling. If you encounter any problems during use, please feel free to contact us.

Size:
31.8*90mm
Manufacturer:
SURIEEN
Part Number:
GN5B3M2
Isin:
IGEJF7TZ634Z

Bicycle handlebar stem 31.8 × 90 mm, ± 85° adjustable, black.

Features:

  • Forged from high quality aluminium alloy, durable and resistant to deformation and rust.
  • The CNC machined surface is comfortable to grip without hurting hands.
  • Has a fine shine and a great colour that is colourfast and stylish.
  • ±85° adjustable, suitable for all ages.
  • Can raise or lower the bicycle handlebar and relieve back and neck pain.
  • Fits most mountain bikes, road bikes, BMX etc.

Specifications:

  • Material: aluminium alloy.
  • Fork bore diameter: 28.6 mm.
  • Handlebar bore diameter: 31.8 mm.
  • Two hole spacing: 90 mm.
  • Height increase: 60 mm.
  • Colour: black.

Package includes:

  • 1 x bicycle handlebar stem.

Note:

  • Please read the list carefully before purchasing to ensure this product is suitable for your bike.
  • Please allow a small size error due to manual measurement.

Processing Time

  • We process and ship orders Monday through Friday, excluding holidays.
  • Most orders are processed within 1–3 business days, depending on product availability.
  • Processing time does not include delivery time, which varies based on your location and the product’s shipping origin.

Shipping Coverage

We currently ship to addresses within the United States only.

Products may ship from:

  • Our U.S. warehouses, or
  • Our international fulfillment centers (including Korea, Japan, China, Australia, Mexico, Canada, the United Kingdom, and the EU).

Each product page clearly displays the “Ships From” location before checkout.


Shipping Methods & Estimated Delivery

Shipping Method Estimated Delivery Cost
Free Shipping (US) 5–10 business days Free, available on eligible items
Standard Shipping (US to US by Item) 5–10 business days $5.95 for the first item, $3.00 each additional
Standard Shipping (From US Warehouse by Weight) 3–7 business days Starts at $5.95, increasing by $2 for every additional 4 oz (0.25 lb) up to 1 lb, then by $4 for each additional pound beyond 1 lb.
Extended Delivery (Ships from Overseas Warehouse) 10–20 business days $14.99 for the first item, $2.00 each additional

Shipping costs vary by product weight, quantity and origin. Exact rates and delivery estimates are displayed on each product page and confirmed during checkout.

Free Shipping

We offer free standard shipping on select products or during promotional periods. Availability of free shipping will be displayed on the product page and at checkout. 


Carriers

We primarily use USPS and UPS for U.S. deliveries. Items shipped from international warehouses may be handled by partner carriers depending on the country of origin.


Import Duties & Taxes

All import duties and taxes for goods imported into the United States are included in the product price. There are no hidden fees or additional charges at checkout.


Tracking & Notifications

Every order is fully trackable. You will receive a tracking number via email once your order ships. If your order ships in multiple packages, each package will have its own tracking number. If you don’t receive a shipping confirmation immediately, your order is still being processed and will arrive within the estimated timeframe shown at checkout.

You can track your shipment anytime using the Track Your Order page on our website.


Order Changes & Cancellations

If you need to modify or cancel an order, please contact our customer support team as soon as possible. Orders can only be canceled before they ship. Once shipped, cancellations are not possible, but you may request a return after the item is delivered.

Contact: support@ibspot.com


Item Not Received

If your tracking number shows “Delivered” but you haven’t received your package:

  1. Check with your local USPS or UPS office.
  2. Confirm that the shipping address provided was correct.
  3. If the issue remains unresolved, contact support@ibspot.com for assistance.

Damaged or Lost Parcels

If your package arrives damaged or fails to arrive, please contact us immediately. For deliveries to P.O. boxes, ibspot is not responsible for damage caused by weather, temperature, or theft.


Customer Support

For any questions about shipping, tracking, or delivery, our customer support team is here to help.

Email: support@ibspot.com

We’re always happy to help.

Please read our policy carefully before making a purchase.
We aim to ensure every customer has a smooth and transparent experience with ibspot.com.


Order Cancellation Policy

Customers may request to cancel an order before it has been shipped.
Once the package has been shipped, cancellations are no longer possible; however, you may still request a return after receiving your order.

How to Request a Cancellation

You can contact us through:

Please submit your cancellation request as soon as possible after placing the order to allow us to process it before shipment.


Return Policy

We accept returns for most items within 30 days of delivery for a full refund.

To be eligible for a return:

  • The item must be unused, in the same condition as received, and in its original packaging.
  • A tracking number must be provided to confirm the return shipment.

Non-Returnable Items

Certain products cannot be returned, including:

  • Perishable goods (for example, food, flowers, newspapers, magazines)
  • Intimate or sanitary goods
  • Hazardous materials or flammable liquids/gases
  • Gift cards
  • Downloadable software
  • Some health and personal care items

Partial Refunds (If Applicable)

Partial refunds may be granted in specific situations, such as:

  • Books with obvious signs of use
  • Opened CDs, DVDs, software, or vinyl records
  • Items not in their original condition, damaged, or missing parts not due to our error
  • Items returned more than 30 days after delivery

How to Return an Item

To initiate a return, please contact us at support@ibspot.com with your order number and details about the product you wish to return.
Our team will provide you with return instructions and a prepaid return label.


Shipping Cost for Returns

Please contact us before returning any item.

We may provide a return shipping label for your return. If the return is due to our error, such as receiving the wrong item, a damaged item, or a defective product, we will cover the return shipping cost.

If the return is due to the customer’s reason, such as ordering the wrong item, changing your mind, or no longer needing the item, the original shipping fee and the return label fee will be deducted from your refund amount.

If a return is sent back without prior contact or without using our provided label, we cannot be held responsible for any return shipping costs or delivery issues.

For items valued over $75, we recommend using a trackable shipping service or purchasing shipping insurance.
We cannot guarantee that we will receive your returned item if shipped independently.


Refund Processing

Once your return is received and inspected:

  • In-store returns are refunded to the original form of payment or issued as a gift card.
  • Mail-in returns using our prepaid label are refunded to the original payment method within 3–5 business days after we receive your return.

Please allow:

  • 5–7 business days for the return to reach our Returns Center.
  • An additional 3–10 business days for your bank to post the refund to your account.

Damages, Issues & Claims

Please inspect your order immediately upon receipt.
If you receive a defective, damaged, or incorrect item, contact us right away at support@ibspot.com.
We’ll evaluate the issue promptly and make it right.

Product Claims

Before purchasing, please review product details carefully.
If there is a problem with your order upon arrival, visit our Support Center or contact us directly to arrange return shipping or replacement.


Exchanges

We do not process direct exchanges.
The fastest way to get what you need is to return the original item and place a new order once your return is accepted.


Return Address

IBSPOT Return Center
15 Sawmill Ln
Dover Plains, NY 12522
United States


Customer Support

Our support team is available 24/7 to assist with cancellations, returns, or general inquiries.

Email: support@ibspot.com
Contact Form: Contact Us page

Oops!

Sorry, it looks like some products are not available in selected quantity.

OK

Subscribe To Our Newsletter

Disclaimer: Statements made, or products sold through this website, have not been evaluated by the United States Food and Drug Administration. Products are not intended to diagnose, treat, cure or prevent any disease.