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29er / Re: The Shiny New AM831 Group Buy (A) Thread!
« on: September 13, 2021, 09:48:27 AM »
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29er / Re: The Shiny New AM831 Group Buy (A) Thread!
« on: September 12, 2021, 03:59:45 PM »
No need to start a mother tongue discussion. Just for clarification.
Let us simply use top/frame/front or bottom/link/rear side. On the SC website it is called front/rear.
I received the shock and was happy to see that the 30mm bushing was top/frame/front side. Still a lot available from 250€ and up @wiggle or bike24. Next will be the megneg if it fits in. Then frame damper is ticked.
Maybe it is worth asking for the interest here for a kind of group order concerning the Cascade link. Unfortunately Haideli was choosing the SC link HI position IMHO, but I do prefer the way down compared to riding up. This leads to one of the main drawback of the SC HIGHTOWER V2, i.e. blowing through travel (even with megneg upgrade for the RS Super Deluxe) on drops and jumps. So light Enduro vs Trail/XC version of the same frame.
If more bottom out resistance through more progression, plus 10mm more rear travel with same shock spec is of interest then the LT link or mullet link might be an option and ...
... with sufficient interest we could convince Cascade to change the file for the CNC process.
Just an idea....
Let us simply use top/frame/front or bottom/link/rear side. On the SC website it is called front/rear.
I received the shock and was happy to see that the 30mm bushing was top/frame/front side. Still a lot available from 250€ and up @wiggle or bike24. Next will be the megneg if it fits in. Then frame damper is ticked.
Maybe it is worth asking for the interest here for a kind of group order concerning the Cascade link. Unfortunately Haideli was choosing the SC link HI position IMHO, but I do prefer the way down compared to riding up. This leads to one of the main drawback of the SC HIGHTOWER V2, i.e. blowing through travel (even with megneg upgrade for the RS Super Deluxe) on drops and jumps. So light Enduro vs Trail/XC version of the same frame.
If more bottom out resistance through more progression, plus 10mm more rear travel with same shock spec is of interest then the LT link or mullet link might be an option and ...
... with sufficient interest we could convince Cascade to change the file for the CNC process.
Just an idea....
3
29er / Re: The Shiny New AM831 Group Buy (A) Thread!
« on: September 12, 2021, 09:14:31 AM »
Question to all European/German buyers.
How long did it take from Eddy's tracking number mail til frame will be at my home door? Got the mail 9.9.
Service by DPD and my last CN frame (delivery by DPD) was simply dropped without notification, signature, door bell...
Did anyone get a RS Super Deluxe installed? Maybe with the RockShox Megneg Air Can? Did it fit the original link and frame tunnel? I received a new 210x55 SC Heckler version. Top 30x8 -->very nice, bottom 20x8--> new set FOX 22.86 required.
Anyone intending to do some link modding? Interested in a Cascade like modification?
Maybe Cascade can do a mod for us if there are some takers. As they CNC from an aluminum block a light modification of the original file should be possible, if not only for me.
Have a nice day.
How long did it take from Eddy's tracking number mail til frame will be at my home door? Got the mail 9.9.
Service by DPD and my last CN frame (delivery by DPD) was simply dropped without notification, signature, door bell...
Did anyone get a RS Super Deluxe installed? Maybe with the RockShox Megneg Air Can? Did it fit the original link and frame tunnel? I received a new 210x55 SC Heckler version. Top 30x8 -->very nice, bottom 20x8--> new set FOX 22.86 required.
Anyone intending to do some link modding? Interested in a Cascade like modification?
Maybe Cascade can do a mod for us if there are some takers. As they CNC from an aluminum block a light modification of the original file should be possible, if not only for me.
Have a nice day.
4
29er / Re: The Shiny New AM831 Group Buy (A) Thread!
« on: September 07, 2021, 10:18:50 AM »
Dear frame owners,
My frame will be shipped this week. Can't wait to start building it.
Just a few questions.
1. What are the dimensions of the shock mounts? I know, asked a couple of times but the original SC Hightower has 30mm at the linkage side and 20mm at the frame side. Here w/ AM831 it seems the other way around. 30mm at the frame and 22.86mm at linkage. This would be standard FOX dimensions.
2. Did someone successfully install a linkage mod? If so, was it the standard or mullet link from cascade? Here the eyelet spacing is 8mm x 30mm, which is the original SC size. This upgrad is just too expensive to wild guess.
Thanks
My frame will be shipped this week. Can't wait to start building it.
Just a few questions.
1. What are the dimensions of the shock mounts? I know, asked a couple of times but the original SC Hightower has 30mm at the linkage side and 20mm at the frame side. Here w/ AM831 it seems the other way around. 30mm at the frame and 22.86mm at linkage. This would be standard FOX dimensions.
2. Did someone successfully install a linkage mod? If so, was it the standard or mullet link from cascade? Here the eyelet spacing is 8mm x 30mm, which is the original SC size. This upgrad is just too expensive to wild guess.
Thanks
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29er / Re: The Shiny New AM831 Group Buy (A) Thread!
« on: August 24, 2021, 08:02:46 AM »
I just ordered mine. In a few weeks we know better. 
On my modification of the DengFu E10 eMTB with a 4-bar w/ shock linkage design there were 2 critical points.
With an 3mm longer shock length it's ~0.4-0.5° steeper HA, but no change in SA on New AM831.
584mm folk (~170mm for a Mezzer PRO) ~1.3° slacker HA.
Mullet with 2.5" wheels ~ 0.9-1.0° slacker HA and a BB drop ~6.7mm higher
As a result: 213x63 shock, plus 170mm folk plus Mullet setup will end around 64° HA which is a modern Enduro HA and of cause also slackening the SA by 2° in total which is not so sweet.
Rumours say that SC has only one basic frame design and they produce a Hightower, Megatower, Nomad, Bronson out if it. How about the new Bromadtower then
On my modification of the DengFu E10 eMTB with a 4-bar w/ shock linkage design there were 2 critical points.
- Bridge of seat stay (if there is one limiting) touching the seat post from behind if compression too long. As 210-55 < 213-63 by 5mm it could be an issue. With 2x2mm offset bushings we are coming very close to the original compressed eye-to-eye distance.
Tire clearance to seat tube is no factor in Mullet setup. - Increased length of shock too big to fit into the eye-to-eye distance w/o the yoke touching the seat post from front side.
Corrective action: offset bushing of 1x 2mm and taking 1mm off the yoke (now 1,5mm yoke-to-seat post clearance)
On AM831 frame shock length fully compressed no issue as longer as standard 210x55. Fully extended maybe (if someone with the frame could take the number, please), then 1 or 2 offset bushings could do the job.
With an 3mm longer shock length it's ~0.4-0.5° steeper HA, but no change in SA on New AM831.
584mm folk (~170mm for a Mezzer PRO) ~1.3° slacker HA.
Mullet with 2.5" wheels ~ 0.9-1.0° slacker HA and a BB drop ~6.7mm higher
As a result: 213x63 shock, plus 170mm folk plus Mullet setup will end around 64° HA which is a modern Enduro HA and of cause also slackening the SA by 2° in total which is not so sweet.
Rumours say that SC has only one basic frame design and they produce a Hightower, Megatower, Nomad, Bronson out if it. How about the new Bromadtower then
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29er / Re: The Shiny New AM831 Group Buy (A) Thread!
« on: August 24, 2021, 03:43:10 AM »
Hi Eddy and all enthusiasts again,
did anyone measure by chance which max shock length could be mounted to increase the travel a bit without hitting the frame? My intention is, as said, to go mullet and use a shock of 213x63, which will give around 170mm rear travel. If required with one or two 2mm offset bushings in case the shock would be too long.
A 27.5x2.4" rear wheel should clear the seat post if it was good for 29x2.4" (acc. Eddy's post) @ 150mm rear travel.
I’d highly appreciate if someone could take the time and measurements.
Thanks again and regards from Germany
did anyone measure by chance which max shock length could be mounted to increase the travel a bit without hitting the frame? My intention is, as said, to go mullet and use a shock of 213x63, which will give around 170mm rear travel. If required with one or two 2mm offset bushings in case the shock would be too long.
A 27.5x2.4" rear wheel should clear the seat post if it was good for 29x2.4" (acc. Eddy's post) @ 150mm rear travel.
I’d highly appreciate if someone could take the time and measurements.
Thanks again and regards from Germany
7
29er / Re: The Shiny New AM831 Group Buy (A) Thread!
« on: August 18, 2021, 05:41:12 AM »
Dear AM831 enthusiasts,
I was following the discussion about the AM831 frame since a while as I was looking into a similar SC type frame with 180/180mm project from a different manufacturer which was unfortunately cancelled.
As Eddy offered a new group buy order I was sending a few questions to him, still waiting for a reply. But maybe someone here has the same intentions and interests and has taken the time to analyze the geometry.
Here are my questions and maybe the group can assist.
1. What is the final design and geometry as details differ on different websites? It appears like a copy'n'paste from SC Hightower, which is 150/140mm (F/R), just the seizing is OFF by one. SC M is here a S....
2. Has anyone a linkage X3 file to analyze the geometry and dynamic values.
3. I did built other bikes incl. Dengfu E10 EMTB which was designed 150/150mml. I would like to increase the rear travel on the AM831 also by using a 216x63mm shock and offset bushings of 2-3mm to adjust for rear wheel/triangle and frame clearance. Then the rear had ~170mm of travel which I am looking for. Will this work? On the E10 it works great. I can tell from riding the last months.
How much clearance does the frame have to allow for longer/shorter (216x63//200x57mm) shock??
To really pimp the geo an angleset and/or mullet setup could make it perfect, if the factory geo is good and allows modification.
4. What parts are included in the complete set?
What seize/type are the headset bearings as I would like to slacken with an angle set?
Is it a UDH?
Thanks already now
Kind regards from Germany
I was following the discussion about the AM831 frame since a while as I was looking into a similar SC type frame with 180/180mm project from a different manufacturer which was unfortunately cancelled.
As Eddy offered a new group buy order I was sending a few questions to him, still waiting for a reply. But maybe someone here has the same intentions and interests and has taken the time to analyze the geometry.
Here are my questions and maybe the group can assist.
1. What is the final design and geometry as details differ on different websites? It appears like a copy'n'paste from SC Hightower, which is 150/140mm (F/R), just the seizing is OFF by one. SC M is here a S....
2. Has anyone a linkage X3 file to analyze the geometry and dynamic values.
3. I did built other bikes incl. Dengfu E10 EMTB which was designed 150/150mml. I would like to increase the rear travel on the AM831 also by using a 216x63mm shock and offset bushings of 2-3mm to adjust for rear wheel/triangle and frame clearance. Then the rear had ~170mm of travel which I am looking for. Will this work? On the E10 it works great. I can tell from riding the last months.
How much clearance does the frame have to allow for longer/shorter (216x63//200x57mm) shock??
To really pimp the geo an angleset and/or mullet setup could make it perfect, if the factory geo is good and allows modification.
4. What parts are included in the complete set?
What seize/type are the headset bearings as I would like to slacken with an angle set?
Is it a UDH?
Thanks already now
Kind regards from Germany
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