Goupil

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Forum replies: 89

Comments: 9

Fantasy: 864th

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Rennes, FR

Member Since:

12/28/2024

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sprungmass Liked a forum topic Drivetrain Talk

5/4/2025 2:06pm

Creating this topic so we can nerd out about MTB drivetrains in typical Vital fashion. I will start this off by discussing the latest one: SRAM Transmission Mechanical vs AXS and my thoughts and observations on it. When SRAM first released their Transmission, there was a common misconception that you need electromechanical shifting (AXS) in order to get the perfect shift. People thought there is some sort of "chip" in the cassette that lets the AXS derailleur know when to shift safely. In reality, all the magic is in the cassette with the narrow wide profiles and predefined shift gates...

This forum topic has 78 replies.

naptime Liked a reply to forum topic What Frame/Component/Gear/Accessory do you Wish existed?

4/30/2025 2:37pm

User name checks out

This forum topic has 88 replies.

dolface Liked a reply to forum topic The Bikeconomics (Mega)Thread

4/30/2025 2:31pm

Silca is not releasing it;s newest product (mini-inflator) in the US due to tariffs: https://escapecollective.com/silca-elettrico-pumps/ Lots of good insight, and I thought this breakdown was really helpful "Ideal world: COGS: $42 Shipping: ~$2 Import Duties/Paperwork fees ~13%: $5.46 'Landed COGS': $49.46 Price to bike shop: $90/ Silca Gross Profit: $40.54 / 45% Retail: $149 / Bike Shop Gross Profit: $59 / 40% With Trump 45 Tariff on Chinese-made goods (2018): COGS: $42 Shipping: ~$2 Import Duties/Paperwork fees ~13%: $5.46 25% Trump 45 Tariff: $10.50 'Landed COGS': $59.96 Price to bike shop: $98/ Silca Gross Profit: $40.05 / 38.8% (42-45% is...

This forum topic has 5328 replies.

edwardyoon Liked a bike check Stanton Sedona

4/22/2025 6:09am

Sedona FB.jpg?VersionId=SdMgerDOWZcMDd4aWlUXAN3ev18Cf4t

This bike check has 2 comments.

sethimus Liked a reply to forum topic Nerding out on Brakes shall we? Not another tech deraliment

4/18/2025 3:17am

i had mine after 10s, but i‘m an efficient german

This forum topic has 2968 replies.

monarchmason Liked a reply to forum topic MTB Tech Rumors and Innovation

4/18/2025 2:41am

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This forum topic has 30430 replies.

monarchmason Liked a reply to forum topic MTB Tech Rumors and Innovation

4/12/2025 1:49pm

Towers are not tall enough. Said to be a new 32”. Going to be called MegaSkyScraper. Remember me as I just leaked the companies biggest news. Theyre coming for me.

This forum topic has 30430 replies.

1llumA Liked a reply to forum topic The Bikeconomics (Mega)Thread

4/7/2025 2:39am

There is a difference between trade restriction like European countries not selling fish to Russia and import duties (tariffs, custom taxes whatever you wanna call it). With trade restrictions, yes second market are used to avoid such restrictions. In the case you mentioned, Belarus could buy the fish from Europe and then resell it to Russia since Belarus doesn't have the trade restrictions with Russia. This is also how Iran purchase most of their restricted goods through second market. China is doing the same currently with NVIDIA AI GPU. With import duties, trades of good is not restricted just costlier...

This forum topic has 5328 replies.

metadave Liked a reply to forum topic MTB Tech Rumors and Innovation

4/7/2025 2:36am

I'm aware, and have an understanding that 90% or more of riders have no business touching high speed compression or rebound knobs. There are many suspension company's making fantastic stuff for cheap. Suntour, Rockshox, Marzocchi and X-fusion all knock it out of the park with close to $500 suspension products for every day riders from XC to freeride. I love my Z1 and rarely do I find it unable to keep up to my 38 Factory while it does double duty on a hardtail on the same trails. And the Domain has been a reliable smasher of a park and...

This forum topic has 30430 replies.

PeteHaile Liked a reply to forum topic The Bikeconomics (Mega)Thread

4/4/2025 1:33pm

Hi y'all, Longtime reader, though I rarely post. Some context I run a small non-bike company in Sheridan, WY. We make a ton in house, import a little, and outsource a bunch to other companies in the US. We do about 40% of our sales in Canada. These tariffs will put the brakes on the entire economy. My business is well positioned to make 100% of our product in the US, which would seemingly be a boon for us. But who is going to be able to buy it? Will our customers in Canada want to buy our products at...

This forum topic has 5328 replies.

kperras Liked a reply to forum topic Rimpact Chain Damper

4/4/2025 1:17pm

Trying to visualize myself gliding through the woods with my e13 hub, rimpact spider, and STFUs strapped to my 30a durometer wavy chainstay protector...

This forum topic has 59 replies.

Goupil Added a reply to Used Market Opinions and Experience (entire bikes)

4/4/2025 1:10pm

Currently looking at getting a Propain Hugene, the spring sale from Propain (30% off) makes used bikes almost as expensive as a new one... Had no issues selling cheap frames recently (under 150€ hardtails, was trying to clear up space more than make money), but nothing except a hard lowball for a Polygon Siskiu T8 frame with shock and fork...

lloyd506 Liked a reply to forum topic The Bikeconomics (Mega)Thread

3/28/2025 8:03am

Vital is going to need to have SKUs for all the off topic and sideways rants that happen.

This forum topic has 5328 replies.

SteveClimber Liked a reply to forum topic Can You Fine-Tune Frame Stiffness With Just Bolt-On Bridges?

3/19/2025 1:07am

The other interesting part I don't see discussed often is that aluminium does not have a fatigue limit. The wording of that is slightly confusing if you don't know what it means, but essentially aluminium will eventually always fail from stress cycling at any stress level after enough cycles. Steel has a limit, where as long as the stress is below it's fatigue limit, it will not fail no matter how many cycles. It takes quite a while, but generally aluminium cracks around the 500 million cycle mark, at least that's what airframe engineers assume. If your a boat person...

This forum topic has 52 replies.

Ryan Burney Liked a reply to forum topic Can You Fine-Tune Frame Stiffness With Just Bolt-On Bridges?

3/19/2025 1:02am

The shape of the rear triangle has a big impact on stiffness. The most efficient design is one with a large, well-defined triangle, like what you see on a road bike. It works like a truss bridge, where tall supports on the sides make the structure stronger without just making the base thicker. Adding more material at the base would make it heavier without adding much strength. A well-designed rear triangle keeps the bike stiff and efficient without unnecessary weight. Frame and pivot layout also play a huge role in stiffness, making things more complex. The main takeaway is this...

This forum topic has 52 replies.