Renthal Apex 35 Stem – 40mm – 35mm Clamp – ±6° – 1-1/8" Steerer – Black/Gold

The Renthal Apex 35 Stem is designed for riders who want a strong, lightweight cockpit upgrade that can handle aggressive trail riding, enduro stages, and XC racing alike. CNC machined from a single billet of 7075 aluminum, the Apex combines durability, stiffness, and clean machining into one of the most refined MTB stems available.

Renthal’s distinctive 240° wrap-around handlebar clamp increases bar contact and stiffness while allowing excess material to be removed for weight savings. The oversized center bore and extensive 3D machining further enhance torsional rigidity without unnecessary mass.

This 40mm length version pairs perfectly with modern wide bars and short cockpit setups commonly used on trail, enduro, and downhill bikes.

Key Functional Details

• CNC machined from solid 7075 aluminum billet
• Unique 240° handlebar clamp improves bar grip and stiffness
• Oversized center bore increases structural strength
• Extensive 3D machining removes weight while maintaining rigidity
• Durable anodized finish with laser etched graphics
• Reversible installation for +6° or −6° stem angle

Technical Specifications

Compatibility & Technical Notes

• Fits forks with 1-1/8" steerer tubes
• Compatible with 35mm diameter handlebars
• Common on modern trail, enduro, and downhill bikes
• 40mm length ideal for modern short-reach cockpit setups

Service / Ownership Context

Short stems like the 40mm Apex are commonly used on modern mountain bikes to improve steering response and stability on steep terrain. Pairing a short stem with wide handlebars creates better control and rider confidence on technical trails.

Fit & Use Signals

• Good Fit: 35mm MTB handlebars
• Good Fit: Trail, Enduro, or Downhill mountain bikes
• Good Fit: Riders wanting a short 40mm cockpit setup
• Not A Fit: Handlebars with 31.8mm clamp diameter
• Not A Fit: Bikes with tapered steerer incompatibilities beyond 1-1/8" clamp