Uploaded February 2025 | Updated September 2026, 2 weeks ago
▬▬▬▬ Video Overview ▬▬▬▬
The response to the SILCA Ultimate Sealant with Injectable Fiberfoam launch video has been incredible, and with that comes a lot of great questions!
In this follow-up video, Josh addresses the most common topics from the comments to the launch video, covering the Top 10 questions. If you're wondering how Ultimate Sealant performs, this video has the answers, along with insights that are worth checking out.
This latest version of Ultimate Sealant has been a couple of years in the making, and now it's time to dig into the details that are top of mind for many of you. If we don’t cover your question here, let us know in the comments, and we may feature it in a future video.
▬▬▬▬ Links & Resources ▬▬▬▬
Sign-up for SILCA Email Updates → silca.cc/pages/country-update-for-notification-preferences
SILCA Ultimate Sealant → silca.cc/products/ultimate-tubeless-sealant
Ultimate Sealant Remover → silca.cc/products/ultimate-sealant-remover?variant=40144023453794
Ultimate Sealant Injector → silca.cc/products/ultimate-sealant-injector?variant=52354102526323
Valve Cores → silca.cc/products/replacement-presta-valve-core-set-of-4?variant=18005040324
Synergetic Wet Lube → silca.cc/products/synergetic-wet-lube
Synerg-E E-Bike Lube → silca.cc/products/synerg-e-e-bike-lube-sale?variant=39567503982690
Rim Tape Issues? See the Discussion → forum.slowtwitch.com/forum/Slowtwitch_Forums_C1/Triathlon_forum_F1/Silca_sealant_P7945527/?search_string=silca#p7945527
Want the inside scoop? Sign-up for SILCA weekly Email Newsletters → silca.cc/pages/country-update-for-notification-preferences
▬▬▬▬ Video Chapters ▬▬▬▬
0:00 - Intro
1:00 - Hi-flow valves
3:29 - Ammonia/CO2/water soluble
4:48 - Remove old sealant before installation?
5:33 - Fillmore valves/65 mL bottle
6:30 - Rim tape issues?
8:48 - Tire insert issues/tips?
9:55 - Lubricant coating trick for valves?
11:21 - Replenisher with NEW sealant?
12:49 - What PSI was used in testing?
15:48 - Remove version 1.0 before using 2.0?
16:38 - [CHART] Tire/Type - Ultimate Fill Guide
▬▬▬▬ Follow for more ▬▬▬▬
Subscribe to the SILCA Velo YouTube Channel: / @silcavelo
SILCA website: silca.cc
SILCA blog: silca.cc/blogs/silca
Instagram: instagram.com/silca_velo
Facebook: facebook.com/SILCAvelo
LinkedIn: linkedin.com/company/silca-velo
▬▬▬▬ ABOUT SILCA ▬▬▬▬
Founded in Milan in 1917 and now based in Indianapolis, SILCA is renowned for its passion for cycling. Led by cycling industry leader, Josh Poertner, the brand has expanded from the iconic SuperPista pump to a full range of high-end cycling tools and gear, collaborating with UCI World Tour teams to enhance cycling performance. SILCA combines tradition with innovation, inspiring cyclists to enjoy both riding and maintenance.
▬▬▬▬▬ Credits ▬▬▬▬▬
Created by SILCA
© SILCA
Oil Slick Stock Photo by Jesse Bowser on Unsplash.com
#SILCA #cycling #marginalgains #tiresealant #fiberfoamtechnology #ultimatesealant #injectablesealant
Do you have any questions, tips, or ideas about the latest version of Ultimate Sealant with Injectable Fiberfoam? If yes, please let us know in the comments section below!
▬▬▬▬ Video Overview ▬▬▬▬
The response to the SILCA Ultimate Sealant with Injectable Fiberfoam launch video has been incredible, and with that comes a lot of great questions!
In this follow-up video, Josh addresses the most common topics from the comments to the launch video, covering the Top 10 questions. If you're wondering how Ultimate Sealant performs, this video has the answers, along with insights that are worth checking out.
This latest version of Ultimate Sealant has been a couple of years in the making, and now it's time to dig into the details that are top of mind for many of you. If we don’t cover your question here, let us know in the comments, and we may feature it in a future video.
▬▬▬▬ Links & Resources ▬▬▬▬
Sign-up for SILCA Email Updates → silca.cc/pages/country-update-for-notification-preferences
SILCA Ultimate Sealant → silca.cc/products/ultimate-tubeless-sealant
Ultimate Sealant Remover → silca.cc/products/ultimate-sealant-remover?variant=40144023453794
Ultimate Sealant Injector → silca.cc/products/ultimate-sealant-injector?variant=52354102526323
Valve Cores → silca.cc/products/replacement-presta-valve-core-set-of-4?variant=18005040324
Synergetic Wet Lube → silca.cc/products/synergetic-wet-lube
Synerg-E E-Bike Lube → silca.cc/products/synerg-e-e-bike-lube-sale?variant=39567503982690
Rim Tape Issues? See the Discussion → forum.slowtwitch.com/forum/Slowtwitch_Forums_C1/Triathlon_forum_F1/Silca_sealant_P7945527/?search_string=silca#p7945527
Want the inside scoop? Sign-up for SILCA weekly Email Newsletters → silca.cc/pages/country-update-for-notification-preferences
▬▬▬▬ Video Chapters ▬▬▬▬
0:00 - Intro
1:00 - Hi-flow valves
3:29 - Ammonia/CO2/water soluble
4:48 - Remove old sealant before installation?
5:33 - Fillmore valves/65 mL bottle
6:30 - Rim tape issues?
8:48 - Tire insert issues/tips?
9:55 - Lubricant coating trick for valves?
11:21 - Replenisher with NEW sealant?
12:49 - What PSI was used in testing?
15:48 - Remove version 1.0 before using 2.0?
16:38 - [CHART] Tire/Type - Ultimate Fill Guide
▬▬▬▬ Follow for more ▬▬▬▬
Subscribe to the SILCA Velo YouTube Channel: / @silcavelo
SILCA website: silca.cc
SILCA blog: silca.cc/blogs/silca
Instagram: instagram.com/silca_velo
Facebook: facebook.com/SILCAvelo
LinkedIn: linkedin.com/company/silca-velo
▬▬▬▬ ABOUT SILCA ▬▬▬▬
Founded in Milan in 1917 and now based in Indianapolis, SILCA is renowned for its passion for cycling. Led by cycling industry leader, Josh Poertner, the brand has expanded from the iconic SuperPista pump to a full range of high-end cycling tools and gear, collaborating with UCI World Tour teams to enhance cycling performance. SILCA combines tradition with innovation, inspiring cyclists to enjoy both riding and maintenance.
▬▬▬▬▬ Credits ▬▬▬▬▬
Created by SILCA
© SILCA
Oil Slick Stock Photo by Jesse Bowser on Unsplash.com
#SILCA #cycling #marginalgains #tiresealant #fiberfoamtechnology #ultimatesealant #injectablesealant
Do you have any questions, tips, or ideas about the latest version of Ultimate Sealant with Injectable Fiberfoam? If yes, please let us know in the comments section below!



![Paris-Roubaix Wasn’t About Flats. Here’s What Actually Happened
Learn the process of how pro teams approach tire setup, pressure strategy, and equipment decisions at Paris-Roubaix — and why this year’s race wasn’t really about flats at all.
▬▬▬▬ Video Overview ▬▬▬▬
Paris-Roubaix is always chaotic. This year looked like it came down to flats/punctures.
But that’s not really what happened....
In this week’s catch-up conversation, Josh Poertner breaks down what we actually saw on the cobbles: a mix of real punctures, tire burping, pressure loss, and modern tire systems being pushed right to their absolute limits.
From the shift toward wider tires (32mm → 35/36mm), to pressure decisions made at training speed vs race speed, to the realities of hookless and mini-hook rim designs — this wasn’t just bad luck. It was a systems problem.
This discussion reflects broader race coverage and technical analysis seen across the cycling world, including reporting and insights from:
Escape Collective – Equipment trends and team setup insights from Roubaix
BikeRadar – Technical analysis of bikes, tires, and pressure strategies
Velon CC – In-race data and rider perspective from the cobbles
The Queen Stage Podcast – Race discussion and observations from the men’s and women’s events
We also look at how teams responded in real time:
• Gluing tires to stabilize the bead
• Using RTV silicone to reduce burping and impact forces
• Avoiding inserts in certain conditions
• Managing tradeoffs between aerodynamics, control, and durability
At Roubaix, there is no perfect setup. Only the least-worst solution.
And this year made that clearer than ever.
▬▬▬▬ Links & Resources ▬▬▬▬
Items featured in the video
• SILCA Chain Waxing System
• SILCA Ultimate Sealant with FiberFoam
• SILCA Tire Pressure Calculator
• SILCA Synergetic Wet Lube
Paris-Roubaix Media Coverage Referenced
• Escape Collective – https://escapecollective.com/paris-roubaix-2026-tech-gallery/
https://escapecollective.com/gallery-the-pelotons-tyre-picks-for-paris-roubaix-2026/
https://escapecollective.com/uci-has-banned-gravaa-from-paris-roubaix/
• BikeRadar – https://www.bikeradar.com/features/opinion/tyres-are-getting-wider-but-paris-roubaix-was-still-littered-with-punctures
• Velon CC – https://www.velon.cc
• Queen Stage Podcast – https://www.queenstage.cc
▬▬▬▬ Video Chapters ▬▬▬▬
00:00 - Why this wasn’t really about flats
00:20 - What actually happened on the cobbles
01:15 - Why tire setup is a systems problem
02:30 - The shift to wider tires (32 → 36mm)
04:00 - Pressure decisions: training vs race speed
06:00 - Hookless and mini-hook limitations
08:30 - Why teams are gluing tires
10:30 - Inserts: risk vs performance
12:30 - The 38mm tire tradeoff (watts vs control)
14:30 - What this means going forward
▬▬▬▬ Follow for more ▬▬▬▬
Subscribe to the SILCA Velo YouTube Channel: / @silcavelo
SILCA website: https://silca.cc/
SILCA blog: https://silca.cc/blogs/silca
Instagram: https://www.instagram.com/silca_velo/
Facebook: https://www.facebook.com/SILCAvelo
LinkedIn: https://www.linkedin.com/company/silca-velo/
▬▬▬▬ ABOUT SILCA ▬▬▬▬
Founded in Milan in 1917 and now based in Indianapolis, SILCA is renowned for its passion for cycling. Led by cycling industry leader, Josh Poertner, the brand has expanded from the iconic SuperPista pump to a full range of high-end cycling tools and gear, collaborating with UCI World Tour teams to enhance cycling performance. SILCA combines tradition with innovation, inspiring cyclists to enjoy both riding and maintenance.
▬▬▬▬▬ Credits ▬▬▬▬▬
Created by SILCA
© SILCA
Additional footage and audio elements:
• Fast burp/belch sound effects by freesound_community (Pixabay)
• Angelic choir intro by Tomáš Herudek (Pixabay)
• Solar flare stock footage provided by Vecteezy
▬▬▬▬ DISCLAIMERS ▬▬▬▬
SILCA participates in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide content creators with fees by linking to Amazon.com and affiliated sites.
Do you have any questions, tips, or ideas about tire pressure, hookless rims, or Paris-Roubaix tech trends in the pro peloton that can work for the rest of us [regular cyclists]? Let us know in the comments section below! Paris-Roubaix Wasn’t About Flats. Here’s What Actually Happened](https://i.ytimg.com/vi/BN3XAZJ_p_U/mqdefault.jpg)






