Chinese Carbon MTB Forums
News:
Happy Holidays!
See likes
See likes given/taken
| Post info | No. of Likes |
|---|---|
Re: Ican S3 XC Frame
I appreciate the explanation but I think the ratio is off because 165X38 shock is 100 mm on most bikes so taking the trunnion in consideration 140 trunnion should be about 105 , the 142.5 should be about 112 and the 145 should be about 120. Maybe the stroke changes that slightly but unless you're compressing the shock to get in the frame then the numbers are still skewed. Not to mention that if it doesn't have capability to full compress the shock and bottom out then what's the point? I'm not quite sure if I fully understand what you mean... But there seem to be some errors in your thinking. Please correct me if I'm wrong: You say that "165x38 shock is 100mm on most bikes", do you mean that a frame with a 165x38 shock usually provides 100mm of travel? Well it may be, that many bikes with these shock dimensions have 100mm of travel. But the amount of travel that the shock stroke translates to, depends on the leverage ratio of the frame. And that cannot be "off", it is what it is. Every bike is different. That just depends on how the linkage is designed. Like some bikes with a 210x55 shock have 140mm of travel, others have 160mm. The Ican here for example has an average leverage ratio of 2,5. That means that for every 1mm of shock compression, the rear wheel moves upwards by 2,5mm - on average. It's probably a progressive frame, so the leverage ratio will reduce throughout the travel. Now for this, the only important number is the stroke length of the shock, which is the second number, like "38". The first number - 165 - is the eye to eye, so the overall length of the shock. That should usually not be messed with, since any changes will drastically affect the geometry of the bike. Also, it doesn't matter if its trunnion or standard mount. The eye to eye is what counts. In this bike, you should only run 165mm, trunnion or standard. What the guys are talking about, is keeping the eye to eye length the same, but changing the stroke length of the shock. So when the standard shock would be fully compressed, a longer stroke shock still has some more to go, resulting in more travel. The limit of this is reached when the seat stays hit the seat tube. What Ben did, is go to this point of maximum compression and measure the remaining eye to eye distance, which is 115mm. A 165mm shock would need to be compressed by 50 mm to get to this point. But you need some safety room to avoid breaking the frame at the first bottom out, also because the bottom out bumpers of the shock still give way a little when it's compressed hard. That's why Ben suggested a 45mm stroke shock may work. The rest is math. Let's say the leverage ratio is 2,5 at the end of the stroke (it's probably a little lower), then an additional 2,5 mm of shock stroke will give you 6,25mm more travel. Take that twice and you have your 112mm with a 45mm stroke instead of the standard 100mm with a 40mm stroke. Sorry, a lot to read, I know... I hope I didn't misunderstand you, just thought this might help. Took me a while to get behind this linkage stuff too. April 23, 2021, 06:10:02 PM |
1 |
|
Re: Lexon "Riot 10"
I bought this Lexon RIOT frame and fitted it with the donated Polygon Xtrada 7 components youtu.be/2gI5sf8nxA4 September 23, 2021, 10:36:19 PM |
1 |
|
Light Carbon LCFS713 build.
I'm addicted to building bikes. (I love riding them to...) And my first build was the Light Carbon LCFS958. Its a great bike and the quality and fit of the frame is perfect. So I stuck with Light Carbon frames and after that I have built two LCFS911, one LCFS917, one LCFS947 and now I am busy building my first LCFS713. I'm building the LCFS713 in size M so its not for me. It fits my wife, or i might sell it. Its just the creative you of building and curiosity of the frame that makes we want to build another LCFS bike. October 12, 2021, 01:49:22 AM |
1 |
|
Re: Lexon "Riot 10"
Thanks for sharing your experience rongearbob I also had an exchange with everjoy, the frame in size L/19 weights 2103 gr. Looking forward to see your bike soon! 
October 14, 2021, 02:13:18 PM |
1 |
|
Re: Lexon "Riot 10"
so far it works fine
October 16, 2021, 10:30:31 AM |
1 |
|
Re: Lexon "Riot 10"
although it cannot touch it, it is not a bad idea to add a travel reducer. The manufacturer told me that it was possible to mount the Manitou Mara Shock with that travel
November 04, 2021, 07:43:12 AM |
1 |
Re: Lexon "Riot 10"
Caseven, is a bearing press necessary for the headset on the Lexon Riot? I'm getting my components ready for the Riot build (once it arrives) and the one tool I don't have is a bearing press. Thanks. Bearings just "drop in" into frame, no press required November 09, 2021, 02:19:54 PM |
1 |
|
Re: Lexon "Riot 10"
my frame arrived few days ago...I'm very impressed with Lexon quality overall! Large size came at 2130 grams with shock hardware (no rear axle ) November 09, 2021, 02:24:40 PM |
1 |
Re: Lexon "Riot 10"
For sure, but this is my winter project, so it will take some week to be ready for trails! November 10, 2021, 01:51:05 AM |
1 |
|
Re: Aliexpress recommendation for hydraulic brake housing and shift housing
Jag wire.
November 27, 2021, 04:57:35 AM |
1 |
