BBB Seatpost Clamp - Black

Screw-on seatpost clamp with rubber cover to prevent water and dust entering the seat-tube. Versat...

Best current price£6.99from Tredz

One Offer

1 offer from £6.99

View price history by clicking the chart icon.

TredzBlack Bbb Collarclamp Seat Clamp Size 31.8
£2.95 delivery
£6.99
Visit shop

Product Information

Full details

This BBB Seatpost Clamp in black is designed for adult cyclists seeking reliable protection for their seatpost. Its key benefit is the integrated rubber cover that effectively shields the seat tube from water and dust. A minor caveat is the necessity for precise measurement to ensure the correct size is chosen for optimal fit.

All features

Age Groupadult
ColourBlack
GenderUnisex
Model Part NumberBSP-88
BrandBBB

Extended Product Information

FAQs

What does '31.8 (27.2)' mean for the clamp size?

This indicates that the 31.8mm clamp is designed to fit a seatpost with an outer diameter of 27.2mm. The clamp size refers to the *frame's seat tube inner diameter* or, more practically, the *seatpost's outer diameter* it's intended to grip.

How do I measure my seatpost diameter correctly?

Use a caliper for the most accurate measurement of the seatpost's outer diameter. Measure at several points around the post to ensure consistency.

Can I use this clamp on a carbon seatpost?

Yes, the clamp is designed to be versatile and fits both carbon and aluminum seatposts. However, when clamping a carbon seatpost, be mindful not to overtighten. Using carbon assembly paste is recommended for optimal grip and to prevent over-tightening.

What is the weight of the clamp?

The BBB Seatpost Clamp weighs approximately 25 to 27 grams, depending on the size.

How often should I check the clamp tightness?

It's good practice to check the tightness of all clamps periodically, especially after rides on rough terrain or after a significant amount of time. A quick visual and tactile check before each ride is recommended.

What is the primary benefit of the rubber cover?

The rubber cover's primary benefit is to create a seal that prevents water, mud, dust, and other debris from entering the seat tube, which can help prevent corrosion, creaking, and damage to the frame and seatpost.

Troubleshooting

Seatpost slipping after tightening

Ensure you have selected the correct clamp size. Re-tighten the bolt, ensuring it is snug and evenly applied. For carbon seatposts, consider using carbon assembly paste for improved grip. Check for dirt or debris on the seatpost or inside the clamp.

Clamp bolt is difficult to tighten or is stripped

Check the bolt threads for any debris or damage. If the threads are damaged, the bolt may need replacement. Ensure you are using the correct size Allen key. Do not force the bolt.

Water/dust still entering seat tube

Inspect the rubber cover for any tears or gaps. Ensure the cover is properly seated around the clamp. If damaged, the rubber cover may need to be replaced, or the entire clamp might require replacement if the cover is integral.

Pros and Cons

Pros

  • Provides excellent protection against water and dust.
  • Works with both carbon and aluminum seatposts.
  • Durable and strong aluminum construction.
  • Very lightweight, not adding significant bike weight.
  • Available in common, practical sizes.

Cons

  • Requires precise measurement for correct sizing.
  • Single bolt mechanism may require periodic re-tightening on some setups.
  • Rubber cover might degrade over very long-term exposure to harsh UV light if not maintained.

Setup, Compatibility & Care

Setup:

  1. Ensure your seatpost is clean.
  2. Measure the outer diameter of your seatpost very precisely using calipers to determine the correct clamp size.
  3. Select the appropriate BBB Seatpost Clamp size (e.g., 31.8mm or 34.9mm).
  4. Loosen the single bolt on the clamp.
  5. Slide the clamp over the seatpost and into position on the seat tube.
  6. Tighten the single bolt evenly until the seatpost is securely held. Do not overtighten, especially on carbon seatposts.

Compatibility:

  • Seatpost Material: Compatible with both 6061 T6 Aluminum and Carbon seatposts.
  • Frame Seat Tube Diameter: Ensure the clamp size matches your frame's seat tube outer diameter. Common compatible seatpost diameters are noted in sizes (e.g., 31.8mm clamp fits 27.2mm seatposts, 34.9mm clamp fits 30.9mm and 31.6mm seatposts). Always verify your specific seatpost diameter.

Care:

  • Periodically clean the rubber cover and the clamp mechanism with a damp cloth.
  • Inspect the rubber seal for any signs of wear or damage.
  • Ensure the clamp bolt is clean and lightly lubricated for smooth operation.
  • Avoid using harsh solvents or abrasive cleaners, which can damage the aluminum finish or rubber seal.

Price History

DatePrice
Visit shop