Common construction
The stem uses aluminum alloy, 3D-forged CNC construction and an anodized finish.
Travel Guide
Explore with top rollers, duffels & packs.
Fleece
Jackets
Vests
Shirts
Ski & Snowboard Jackets
Ski & Snowboard Pants
Rain & Wind Jackets
Activewear
Shop All
Fleece
Insulated Jackets
Jackets
Vests
Shirts
Ski & Snowboard Jackets
Ski & Snowboard Pants
Rain & Wind Jackets
Activewear
Shop All
Hiking
Trail Running
Road Running
Casual Shoes
Casual Boots
Winter Boots
Slippers
Sandals
Bike
Climb
Rain
Shop All
Hiking
Trail Running
Road Running
Casual Shoes
Casual Boots
Winter Boots
Slippers
Sandals
Bike
Climb
Rain
Shop All
Hiking Clothing
Hiking Footwear
Backpacking Packs
Technical Daypacks
Hydration Packs
Kid Carriers
Water Bottles
Headlamps
Navigation
Trekking Poles
Shop All
Tents & Shelters
Sleeping Bags
Sleeping Pads
Coolers
Camp Chairs
Camp Tables
Stoves & Grills
Drinkware
Pots & Pans
Kitchen
Lighting
Hammocks
Shop All
Bike Maintenance
Bike Storage & Transportation
Car Racks
Bike Packs & Bags
Bike Lighting & Electronics
Hydration Packs
Water Bottles & Cages
Shop All
Carabiners
Quickdraws
Protection Devices
Belay & Rappel Devices
Ascenders & Descenders
Pitons & Hooks
Pulleys
Bike Racks
Ski & Snowboard Bags
Ski & Snowboard Boot Bags
Fly Fishing Bags & Luggage
Bike Travel Cases
Surfboard Bags & Packs
Sunglasses
Water Bottles
Blankets
Wallets
Water Filters & Purification
Travel Pillows
Power Converters
Audio
Ski & Snowboard Jackets
Ski & Snowboard Pants & Bibs
Midlayers
Baselayers
Ski Socks
Hats, Gloves & Mittens
Pro Honsun Ultralight Alloy Bicycle Stem
In the field
A 3D-forged, CNC-machined aluminum stem with a -17° rise, 28.6 mm steerer clamp and adjustable 31.8–35 mm handlebar clamp.
Clamp dimensions
The 28.6 mm fork clamp pairs with a 31.8–35 mm handlebar clamp and transfer sleeve.
Lengths and weight scope
Native lengths are 45, 50 A, 50 B, 70, 80, 90, and 100 mm. The description gives a 158 ±5 g to 190 ±5 g range only for 50, 70, and 90 mm versions, without mapping each weight.
Construction
- Material
- Aluminum alloy
- Construction
- 3D-forged and CNC-machined
- Finish
- Anodized
Fit
- Rise
- -17°
- Fork clamp
- 28.6 mm
- Handlebar clamp
- 31.8–35 mm with transfer sleeve
Weight scope
- Source weight range
- 158 ±5 g to 190 ±5 g for source-named 50, 70 and 90 mm versions; no per-length mapping
Embark on your next cycling adventure with the Pro Honsun Ultralight Alloy Bicycle Stem, where technicolor dreams meet trailblazing performance. This vividly colorful stem isn't just about aesthetics; it's a beacon of innovation, precision-engineered to seamlessly connect your handlebars with the front fork. With options of 50mm, 70mm, and 90mm lengths, this stem is crafted for XC mountain and road bike enthusiasts who demand lightweight agility without sacrificing strength.
Forged from premium aluminum alloy, the Pro Honsun Stem is a testament to endurance, featuring a robust -17° rise that promises an optimal handling experience. Each variant, be it the breezy 50mm, versatile 70mm, or the steadfast 90mm, weighs in at an ultralight 158±5g to 190±5g, ensuring your ride is unburdened by excess weight. The meticulous 3D forged CNC construction speaks to the integrity in craftsmanship, a core value of Alpine Extreme.
The 28.6mm front fork caliber aligns with a 31.8-35mm handlebar clamp diameter, complete with a transfer sleeve to adjust for size, ensuring a secure and precise fit. The vibrant, anodized finish isn't just for show; it also adds an extra layer of durability to withstand the elements and resist corrosion.
Ideal for spirited cyclists aiming for personal bests on both challenging terrains and smooth cityscapes.
Color your ride with precision – where every turn is a statement of style and performance."
Recommended for You
FAQ
How can I reach Alpine Extreme if I have questions?
Email [email protected] or use our contact form.
Do you offer free shipping?
Free standard shipping is available to most addresses worldwide. Availability, delivery estimates, and any expedited charges depend on the destination and order. International duties, tariffs, and customs fees remain the customer’s responsibility. See our Shipping Policy for details.
What's the return policy at Alpine Extreme?
Eligible return or exchange requests must be submitted within 45 days of the order date. Items must be new and unused with original packaging, tags, and accessories. General change-of-mind returns are not accepted. Return-shipping responsibility depends on the reason for the return. See the full Return & Refund Policy for exclusions and refund timing.
How long will it take for my order to arrive?
Orders are typically processed within 2–5 business days. Most standard shipments arrive within 7–14 business days after shipping, depending on destination and carrier conditions. Delivery estimates are not guaranteed.
Can I track my order?
Yes. Tracking details are emailed after shipment. You can also check order status with your order information through our order-tracking page.
What if there's an issue with my order?
Email [email protected] or submit the form on our support page. Report delivery issues within 60 days of the order date so carrier information is still available.
- Choosing a selection results in a full page refresh.
!