The BBB SmoothLever BSP-87 is the quick-release seat collar that combines practicality, lightness and robustness. Designed for cyclists who need to regularly adjust saddle height, this collar offers an ultra-efficient quick-release system that allows you to modify the position in seconds. Its specific SmoothLever design avoids any contact with the legs, even during technical passages or rapid position changes. CNC machined from high-quality aluminium 6061-T6, it guarantees optimal distribution of clamping forces and perfect hold of the seatpost, even on the most demanding terrain.

Technical highlights

• Quick-lift quick release: The quick-opening lever allows you to adjust saddle height in seconds, without tools. Perfect for versatile cyclists who alternate between roads, paths and single-tracks.
• Anti-interference SmoothLever design: The smooth, optimized geometry of the collar avoids any snagging with the legs during out-of-saddle climbing or aggressive passages.
• CNC machined aluminium 6061-T6: Lightweight material (only 40 grams) but extremely resistant, guaranteeing durability and dimensional precision.
• Even force distribution: The single-bolt mechanism ensures balanced pressure distribution around the seatpost, preventing any unwanted slipping.
• Aluminium-only compatibility: Specifically designed for aluminium seatposts, guaranteeing optimal clamping without risk of damage.

Available variants

The BBB SmoothLever BSP-87 is available in three diameters to fit the majority of bike frames. Each variant shares the same technical characteristics and the same weight of 40 grams:

• 28.6 mm diameter: EAN 8716683102918 / Manufacturer reference 2973649828 — for classic road frames and some older-generation mountain bikes.
• 31.8 mm diameter: EAN 8716683102925 / Manufacturer reference 2973649831 — very widespread standard on modern mountain bikes and gravel bikes.
• 34.9 mm diameter: EAN 8716683102932 / Manufacturer reference 2973649834 — common format on recent mountain bikes, oversized frames and some road bikes with large tubes.

It is essential to precisely measure the inner diameter of the seat tube of your frame with calipers to choose the right variant. An incorrectly sized collar cannot guarantee safe clamping.

Use and compatibility

The SmoothLever is perfectly suited to road, mountain bike, gravel, urban cycling and e-bike practices. Whether you are a casual cyclist looking to adjust your position for more comfort, or a competitor requiring rapid changes between climbs and descents, this collar meets all requirements. Its Taiwanese manufacturing under the BBB Cycling label (Netherlands) guarantees high quality standards and proven reliability in the field. Warning: this collar is not compatible with carbon seatposts, for which BBB offers other specific models such as the LightLever BSP-86.

Installation and maintenance

Installation of the BBB SmoothLever is simple and requires no specialized tools. Simply position the collar around the seat tube of the frame, insert the seatpost at the desired height, then close the quick-release lever by applying firm pressure. The cam mechanism ensures progressive and secure clamping. For maintenance, it is recommended to regularly check the tightness (especially after the first rides) and to clean the collar to avoid the accumulation of dust or mud that could impair clamping efficiency. Light lubrication of the lever mechanism extends its lifespan and guarantees smooth operation.