Rennen Bottom Bracket Ultralite Mini

Introducing the Rennen Ultralite Mini Bottom Bracket — a true engineering marvel designed for cyclists who demand the utmost in performance and precision. Our commitment to innovation has led us to create the lightest and most compact bottom bracket on the planet, and we've taken it a step further by incorporating adjustable features that enhance functionality.

Key Features:

• Exceptional Lightweight Design: Weighing in at a mere 77g (without screws) for the 95mm option, this bottom bracket offers unparalleled weight savings, with options available up to 115mm in 5mm increments.
• Adjustable Chain Line: Featuring a bearing cup with a taper thread lockring and expanding shell design, users can easily make precise adjustments to their chain line for optimal performance.
• Precision Engineering: Equipped with a unique 20mm aluminum 7075-T6 spindle that is oversized for added strength while maintaining a lightweight profile.
• Top-Quality Bearings: Incorporating Enduro ABEC 5 Silicon Nitride Ceramic bearings, renowned for their performance, ensures smoothness and durability in every ride.
• Versatile Spindle Options: M8x1mm stainless steel helicoil threads provide robust strength and holding torque capability, enhancing your riding experience.
• Upgrade Options: Standard titanium spindle bolts are included, but serious enthusiasts can opt for an Aluminum 7075-T6 bolt for maximum weight savings and an aesthetic upgrade.

Weight Limit:

It is important to note that due to the extreme weight reduction design, we recommend that this product should not be used for children weighing greater than 80 lbs.

Elevate your cycling experience with the Rennen Ultralite Mini Bottom Bracket — where cutting-edge design meets premium functionality. Explore how to install it with our detailed video guide and take the first step toward a lighter, more efficient ride!