Product ReviewsSilca Elastomer Seal Presta Chuck 242

Silca Elastomer Seal for Presta Chuck

These seals work great. My old seal had reached the point where it was a struggle to get any air at all into the tires. The new seal popped right in to the chuck, I screwed the chuck back together and gave it a go. The first thing I noticed was how much tighter the new seal gripped the valve stem. I started pumping, and Voila! The air went into the tire, just like it was supposed to, no leakage from the seal at all.

If you've got an old presta chuck that doesn't seal like it used to, get one of these. They do the job.Read full review...

Verified purchase:  Yes | Condition: new | Sold by: btmdollar

Does not work on some valves.

I the old days, Silca heads were the best you could get. I read about this new material, and expected these to be great. Not so. The old black rubbers may not have lasted very long, but they worked. This new red seal will only work with my smooth presta valve stems. Even so, I have to wiggle the head to get a seal. I am unable to get a seal on fully threaded valve stems. Sorry Silca, this one did not work well for me.Read full review...

Verified purchase:  Yes | Condition: new | Sold by: wheelandsprocket

Silca the only one that works for me

Fit my 23 year old silca presta chuck just fine. It works well and hopefully is as durable as my previous washer. I don't know if I'm the only one, but every other lock chuck that I've used doesn't stay put, winds ups cutting my finger and is utterly unreliable in filling my tires.Read full review...

Verified purchase:  Yes | Condition: new | Sold by: trailthis

Review - Elastomer Seal for Presta Pump Chuck

I've used Silica pumps for years on road bike and track bike tires . I thought the press on chucks & replacement washers were obsolete. Was making my own washers which had limited life and was constantly having to tighten. These are doing an extraordinary job so far. Push on a short ways. No leakage. Interested to see how long they last. A little pricey.Read full review...

Verified purchase:  Yes | Condition: new | Sold by: gap30cycles

Restores Silva pump head to new

Forms a nice tight seal over your Presta Valve. No need to hold the pump head. Great product.

Verified purchase:  Yes | Condition: new | Sold by: wheelandsprocket

Tight

My original elastomer was slipping off the valve and no longer had a good grip. Replaced it with this OEM part. Like new

Verified purchase:  Yes | Condition: new | Sold by: trailthis

Works very well on my old brass silca pump head

I have an old Silca pump head - not sure of the model, but it's a large brass cylinder with a section that unscrews. This elastomer seal fits inside just fine and provides a tight seal on presta valves. I've used it on smooth and threaded presta valves with no leaking issues. Just be sure to push the pump head all the way down on the valve. The material is stretchy for a tight seal and should last better than the old natural rubber material. The price is very reasonable.Read full review...

Verified purchase:  Yes | Condition: new | Sold by: magsnapz

Best Silca Washer/Seal

I have been using my Silca pump for more than 30 years and have gone through several washers. This one work better than any - even the original.

Verified purchase:  Yes | Condition: new | Sold by: btmdollar

the elastomer is much softer than the old rubber seals, making it easier to use

Verified purchase:  Yes | Condition: new | Sold by: wheelandsprocket

Just what's needed - make new again

Direct fit, upgraded material, different color, better design.

Verified purchase:  Yes | Condition: new | Sold by: gap30cycles