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Liked a comment on the item What Do Riders Think? Seven Dropper Posts Reviewed by Vital MTB Members 1/19/2019 4:36 PM

We install every dropper on the market in our shop, but the BikeYoke Revive has no equal

Liked a comment on the item What Do Riders Think? Seven Dropper Posts Reviewed by Vital MTB Members 1/19/2019 4:36 PM

I had to borrow a friends post after mine decided to blow. It ended up being a cable clamp at both ends and was actually pretty great and any cable can be used in a pinch. Just cut the head off at the lever after you've tensioned it

Liked a comment on the item TRW Active Enters the Mountain Bike Drivetrain Market 11/16/2018 4:33 PM

Rochard88 I cant find your most recent comment from my email so Im responding here.

Sensah would not be comingbto these TRWA for engineering advice. I think we agree on that. That company according to their website has former Sram engineers who dont need outside help from amatures.

...more

Liked a comment on the item TRW Active Enters the Mountain Bike Drivetrain Market 11/16/2018 11:44 AM

Oneup designed new cages for Shimano RDRs, Ceramicspeed cages and bearings, Wolftooth extender links.

None clamis to have designed the RDR. They are all legitimate and they demonstrate that in their presence and marketing.

TWR/Gravity didnt just vastly under estimate the knowledge...more

Added a comment about news blog TRW Active Enters the Mountain Bike Drivetrain Market 11/16/2018 7:39 AM
Sacki

That, what I claim, is fair enough!
Show me pictures of their own production line of Carbon rims and I´ll stay quiet about it.
I am not sure, if you´ve read about what I and other people have explained about how the bike industry works.
And no offense, bicycle industry is a little different from automotive industry. I live in Munich and i have studie and graduated from a German university in Mechanical Engineering. I am not sayig this to brag about. But you can safely assume, that I know a little about automotive industry. Bascially every other of my firends here in Munich works at BMW.
A very close friend, who works for BMW, does not really understand, how the bicycle industry is working. In the automotive industry you can not simply source a 7-speed DSG transmission gearbox from a catalogue, ask the manufacturer to do some small modifications, put your sticker on an then you´re ready to go. That does simply not work.
In the bicycle industry, however, this IS VERY WELL POSSIBLE. And this can be very lucrative for people who
have a smart business idea and clevery create their own brand with little to no need of invest in engineering.
So I am not blaming you or other people, that have products on their bikes, which they think are designed and made from the brand they buy it from. However, in many many cases those are just freely available branded parts, that dozens of other brands are also offering in the same way, just with a different sticker or print. That happens a lot with handlebars, stems, hubs, rims in particular. This is totally normal, yet totally legit.
Of course there are also other companies, that have the manufacturers make smaller (or bigger) modifications so their products distinguish slightly from what other brands offer.
And then there are companies, that do actual RESEARCH AND DEVELOPMENT and design and test and produce products (or have them produced) from the first sketch to the final thing.
This is what was suggested here and I have my very reasonable doubts about it.
Again: Offering branded products is totally OK.
Trying to make people believe that you are designing a drivetrain from scratch in 2 years, and stating that you are actually manufacturing dozens of different carbon rims in America is not OK. There is so much about it, that I just can not belive, and no one invlved in the company can bring any real proof of what they are claiming, besides phrases.
Or this statement:
"Ultimately, we will operate our own advanced factories here, and around the world, using advanced robotics and AI driven feedback loops."
I am wondering, if the people, who actually write down this stuff are really believing themselves, in that what they write.
Would a company with such goals need to go for a Indiegogo campaign for a - and now just think about it - ready and fully developed and tested 1x11 groupset for mtb? WOULD IT?
Bike magazines, websites, forums would be all over it. I have never even heard about the company until a few days ago.
Those products are already produced as it is said with their own words! What´s the point of an Indiegogo campaign here?
Wake up!

This news blog has 63 comments.

Added a comment about news blog TRW Active Enters the Mountain Bike Drivetrain Market 11/16/2018 2:01 AM
Sacki

Really? What does "seeing first hand how hard and how innovative this company has been delevoping components over a long period of time" include?
I don´t feel like repeating myself over and over, but I some people, including you, do not seem to just remotely understand, what developing really is and what it takes to develop those things.
You also don´t seem to be grasping, how easy it can be to source existing components from more than thousands of manufacturers/suppliers alone in Taiwan. Then you go send them a logo, and they´ll put it on the goods they produce and boom - you have your own product. That´s as easy as it is.
There is no bad things about it. I know dozen of companies, that do this successfully and I do well respect them. But they do not try to fool people into making them believe, that they design and produce everything in house. They don´t try to take credit for something they just don´t do.
The whole world is a big network with basically the whole knowledge of mankind accessible at all times. The chance that someone finds out more than you want him to, is pretty big.

Look, what Gravity Worx is stating on their website:
"GravityWorx manufactures and sells high quality carbon fiber rims and wheels for a variety of uses, and in a range of sizes. We have rims for bike shops and custom builders in 27.5" and 29", in 28mm and 33mm
Asymmetric, 30mm and 40mm widths in ultralight and trail grade, and 50mm lightweight for plus bikes. We also make the strongest carbon fiber downhill and freeride rims you can buy. We have fatbike rims in 26", with 68mm and 80mm widths that are tubeless and double wall, and cyclocross/gravel bike rims in 700c."

They do not just MANUFACTURE rims! they MANUFACTURE dozens of different rim prodile in house. And apparently, they are even the strongest rims, on this planet, that you can buy. all this is being said on their wesbite. Show me one picture, of their own in-house laminating facilities and I´ll be quiet.
I think you do not remotely understand the required size of a plant you need to produce that many different carbon rims.

I can´t even find a drawing for the rim profile. If you put a lot of work into designing, testing and MANUFACTURING rims in the USA, then you really make sure, that you provide all the information possible about your product. You can not even find the exact width of the rim, which is extrmely crucial for stupid nerds like us, that spend $500 on a single rim.
I don´t think they or you do understand, what bike-enthusiasts are. We are nerd enough to tell by smell which sealant you use in your tires. We are nerd enough to know the A2C and rake of any existing fork on this planet - because our frame was designed for 44.5mm offset and not 46mm. We are nerd enough to align the valve-stem of your wheelset between the two XXes of MAXXIS.
Believe me: If there was a rim profile on their website, I bet you a hundred bucks, that there are 5 people here, that could tell you right away, where exactly those rims are coming from and send the link to the website of the manufacturer. This is how much nerd we are.
And now it is not only becoming an insult to people, who actually develop stuff, but also an insult to the people of the community here. Some simply know more about every single component on earth, than you may ever hink is possible. That´s why it simply doe not make sense to try convince them of the work they´re claiming it be their own.
Because we are professional mountainbike nerds and know more than normal people think is possible about that shit.

I didn´t mean to start that big of a thing, when I posted a few days ago. That was not my intention at all.
I just thought, they´d become a little subdue and maybe just ackknowledge that the work of designing and manufacturing high quality mtb-components may invloce just a tiny bit more, than sourcing manufacturers that already produce something and modify it slightly (if at all).
But no, they are trying to back up their claims with very poor and (to me) insulting attempts.
That is, what now makes me and others really want to put them back in their place.

This news blog has 63 comments.

Added a comment about news blog TRW Active Enters the Mountain Bike Drivetrain Market 11/15/2018 6:35 AM
Sacki

Oh, and the "similarity" of paddle-shape between your Triggers paddles and those from a Shimano SLX, XT and XTR, was not intended, right?
Sensah Paddles:
http://sensahtech.com/srx/
Shimano Paddles:
https://www.google.com/search?biw=1920&bih=938&tbm=isch&sa=1&ei=64LtW7z3DMHEwQLwiKDwCg&q=shimano+xtr+11+trigger&oq=shimano+xtr+11+trigger&gs_l=img.3..35i39k1.52140.52140.0.52498.1.1.0.0.0.0.60.60.1.1.0....0...1c.1.64.img..0.1.59....0.nWFnjXYE0IQ
I´d never in my life have the balls to market something just looking remotely that similiar to a Shimano Trigger. Just by loooking at the shape and the dent pattern on the paddles of the Tigger, I'd be afraid to have a letter from Japan on the way to me, soon. But what do i know about the business...

This news blog has 63 comments.

Added a comment about news blog TRW Active Enters the Mountain Bike Drivetrain Market 11/15/2018 3:21 AM
Sacki

I guess what people wanted to see are drawing sketches, early prototypes/functioning mock-ups.
Those parts, that one can see here are for sure no prototypes, but production parts or very late pre-production samples, as they are clearly forged/stamped and definitely something you can not produce without a mould. They are even properly surface finshed, anodized and labeled already. This does not prove that you´ve designed anything. Neither do the pictures. To be fair: It does also not prove that you didn´t.
It´s just that the way about how you got from the beginnigs to now, is where you leave us guessing and just create a vaguemysterial story of developing and testing.
Many people here know, how the bicycle industry can work.
Basically anyone can get and browse the infamous TBS catalogue, find a manufacturer of something, then have the manufacturer modify it slighty (customize it) put a sticker on it, and sell it und an own brand.
Here is an intersting article about it:
https://www.pinkbike.com/news/pinkbike-went-to-taiwan-and-started-a-bike-company.html

You also claim to "advise the largest corporations on earth on manufacturing and IoT implementations."
Wow, you must be a busy man, and I wonder, how you as a two man team find the time to develop such high-end mountainbike products and at the same time have the time to advise the apparently most important economic entities aboout connecting physical/electronic devices to each other through the Internet. What are your references so that such big companies are hearing you?
You also have attended university for various engineering degrees.
You must have been a very busy and striving man.
You may have been involved in helping the original manufacturer and designer of this drivetrain improving the design - be it for optical or functional reasons - we don´t know. But with all the experience that I have - and I know, how those manufacturers and their R&D and their customer relations work - I may still be wrong, but I can´t get rid of the feeling, that you want to make readers believe, that there is a lot more behind what you are doing, than there actually is.
There is no bad thing about cooperating with Asian manufacturers, modifying existing prodcuts, then make them produce cutomized and labelled stuff. But it would be disrespectful to be standing there and claiming to be the one who developed this drivetrain from scratch withign two year.
I´m not evne mentioning, that some of the information your a giving are completely false.
I allow myself to quote:
"..For now though, we are releasing a 1x groupset that has a wider range than any on the market..."
I am not sure, if you happen to know (maybe you are too busy with your other jobs) that SRAM released a 10-50, 500%, bandwidth groupset? Two years ago?
Oh, and shimano just came out with a 10-51 drivetrain?
Honestly, I am also not sure what those drawings are supposed to show or prove.
The "clutch cap" on Solidworks shows an imported file, not an .sldprt file including build-history, which is editable. What is that picture supposed to show?
The picture of the 2 year old testing sample is also questionable. You say, that, in this picture we can see a comparison between what you are offering today and what was the sample 2 years ago. The RD on the right is clearly not, what you are offering today, which can be clearly seen by just looking at the pulleys alone. The pulleys in the pictures from the press release are made of plastic and very similar to the ones from the 2 year old sample, but definitely very different, from the ones of the rear derailleur on the rigth side.
You don´t have to show proof of anything, but I think it is clear, that many people do have a lot of questions about what is gling on with TWR products and where they come from.
Well, maybe people are not even so much interested in where the products come from, because that it obvious anyway, but maybe they are bothered by how you are making it look like wanting to take full credit for the development and design.

This news blog has 63 comments.

Added a comment about news blog TRW Active Enters the Mountain Bike Drivetrain Market 11/14/2018 12:00 PM
Sacki

Actually, I do think the engineering is very difficult.
There is so much more to shifting, than just cogs and parallelograms and spacing and indexing.
Every cog has soo many little shifting aids. Theeth are shaped differently, cog flanks are shaped with little dents, allt for a very specific reason, which, however, is unknown to me. Also the front chainwheels have shifting aids (small, very sharp pins in specific, but - also - not easily understandable positions. Also there, the teeth are shaped very differently. Look at a cog and at a chainwheel and you´ll know, what I mean. It´s far away from being a circular sprocket with 32 tetth of same shape and length.
This is where differences are made: By experience in knowing how to shape and orient sprockets and cogwheels to make shifting smooth, fast and reliable, and not coming along with a lot of noise, too.
Designing a great drivetrain is something, that I honestly have very little clue about.

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This news blog has 63 comments.

Liked a comment on the item TRW Active Enters the Mountain Bike Drivetrain Market 11/14/2018 11:49 AM

We covered this strictly out of editorial interest, it was the first we had ever heard of this company when we stumbled on their website/Indiegogo campaign. Maybe we should have done more research into the whole Aliexpress thing first to have more answers available, but at least it's...more

Added a comment about news blog TRW Active Enters the Mountain Bike Drivetrain Market 11/14/2018 10:08 AM
Sacki

I´ve joined Bionicon Bikes in 2010 and was in charge of and executed all frame and suspension designs after 2012.
Here are a few of the things, that we´ve designed in that period:
https://www.bionicon.de/technik/
I´ve re-designed the existing Bionicon geometry-adjust system, introducing a double-positive and double negative air spring:
https://www.mtb-news.de/forum/attachments/15-2x2-air-cartridge-jpg.368892/
I graduated from university with the design of a bladder-based damping cartridge, which can be seen here at 3:15 (it´s in German though, sorry):
https://videos.mtb-news.de/31011/eurobike_2013_bionicon
A few years ago, I´ve designed an adjustable negative air can for X-Fusion Vector Air, because I believed this was a great shock with great damping, and just lacked the small bump sensitivity of newer shocks.
The design allowed completely independed positive and negative spring pressre wiht adustable negative volume.
It worked and still works perfectly in about 5 shocks. The parts were only produced for a few forum members and me.
I´ve also assisted in shock and dropper design for othe rmajor companies besides Bionicon.
I have the highst respect for all the guys who are developing drivetrain parts, because this is something you can not simply draw as a sketch. It is a highly dynamic system, that has sooo many undefined variables in off road terrain.
That´s why I am reacting so overly sensitive, when I read, that someone claims to develop better products than SRAM or Shimano in a garage and just 2 years.
I just call it the biggest BS, I´ve read in a long time.

This news blog has 63 comments.

Liked a comment on the item TRW Active Enters the Mountain Bike Drivetrain Market 11/14/2018 9:43 AM

And that's why some of us are bitching here, because an obvious rebranding is being sold as a hard worked development by two guys in a garage. Which, as someone said before, is a slap in the face of the guys that actually do make awesome stuff by themselves in a garage. Look at Pinion...more

Added a comment about news blog TRW Active Enters the Mountain Bike Drivetrain Market 11/14/2018 8:55 AM
Sacki

I meant to reply to my other post and wanted to say, that it was sad, that there is no more statement from TRW.
But to be honest, that was to be expected.
I have been designing MTB frames and suspension for a couple of years now. I´ve lived in Taiwan for almost two years.
And I just find it unbelievably bold to make such a statement of having designed a complete groupset from scratch within a period of two years by basically a two man team?
How little idea of the complexity of this product can you have, to believe, that people on Vital, who spend a great share of their free time with mtb-products, would just swallow those statements? How can you seriously believe to get through with this? They must think we are stupid.
It kinda even makes me angry, because, as I said: There are people and in small companies who dedicate a lot of their lives to making really cool stuff - where you can see the passion. Those companies often live in the shades of others, but still they are carrying THE SPIRIT of mountainbiking. Fellas that only are after the quick $$$ are certainly not. It fills me with disgust. Sorry, if I am being a little straight forward here.
Not blaming Vital here at all by the way.

This news blog has 63 comments.

Added a comment about news blog TRW Active Enters the Mountain Bike Drivetrain Market 11/13/2018 4:34 AM
Sacki

That´s very sad...

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This news blog has 63 comments.

Added a comment about news blog TRW Active Enters the Mountain Bike Drivetrain Market 11/11/2018 1:50 AM
Sacki

Companies, rebranding existing cheap and non innovative stuff from other companies and then claiming it to be their own invention is an insult and a big slap in the face of all the guys in small companies, that really put a lot of sweat and blood and dedication into actually designing products to create something of their own.
I am not saying, that this happened here, but it woud be great of you guys to back your claims and explain, where that undeniable similarity to those products off Aliexpress comes from.
A complete groupset is not simply designed within two years, neither are the toolings for all the production, not to mention that it must have been a brave step, to invest hundreds of thousands of dollars that are needed to open toolings for said components` production line.
So please help us all understand. That would be great.

This news blog has 63 comments.

Added a comment about press release Introducing the World's Lightest 80mm Dropper - BikeYoke Divine SL 10/17/2018 11:26 AM
Sacki

TRM Obi1 has not been shown on their website for quite some time. We´re checking our competitors regularly. Why the post is not on their website anymore, I don´t know, and I do not want to speculate.
As mentioned before, the FRM´s weight is based on 27.2 diameter. Of course it is lighter. It has only 60mm of travel. If you want to use it in a 30.9 or 31.6 seatttube, you´d have to use shims, which weighs, as wel.
We´ve designed the DIVINE SL with 80mm, because that is the result of many discussuions with teams, riders, manufacturers and of course, feedback from current customers and ourselves
As you may know (or not know), Specialized EWS factory racing has been riding our posts for the past two seasons, Orbea was involved in the research for the DIVINE SL, and DMT Racing Team will be on our DIVINE SL for next year.
How do you come to the conclusion, that 60mm is, what pro XC and Marathon use? Just because there has been no alternative in the past?

This press release has 9 comments.

Added a comment about press release Introducing the World's Lightest 80mm Dropper - BikeYoke Divine SL 10/17/2018 8:35 AM
Sacki

I am sorry, but FRM Obi1 seatpost is not even available on FRM´s own website.
Maybe you can tell me, why? Where can you buy it, or where can you find information about it, besides the old articles?
Also the FRM weight is for 60mm drop and 27.2 diameter.
DIVINE SL is 30.9 an 80mm drop. Quite a bit of a difference.

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This press release has 9 comments.

Added a comment about press release BikeYoke Launches the REVIVE MAX Dropper 1/25/2018 1:56 AM
Sacki

Sacki from BikeYoke here:
Sorry, but this is not normal. What kind of clamp did you use? Hard anodizing can normally not come off from clamping in a regular work stand clamp at the very the first time. I am really curious. It would be cool to get some pictures of that.

This press release has 20 comments.

Added a comment about press release BikeYoke Launches the REVIVE MAX Dropper 1/25/2018 1:54 AM
Sacki

I am sorry, but why son ranty? We never said, we were the first ones to do 34.9 droppers. But we are the first ones, to design them dedicatedly for 34.9 seattubes and with long travel. Other posts are basically just adapted smaller diameter versions. It is even clearly mentioned in our text. Not sure, why you blame us or Vital for not having done "our research". People in glass houses....

This press release has 20 comments.