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Because of the wide amount of battery sources, many from unregulated origins, e-bike battery safety is really a key developing issue these days. It seems Zen is not only coming up with safer hardware in the way the pack is built, but also on the BMS which provides much tighter battery control...

tech doc for illustration https://www.bonsaitechnology.it/wp-content/uploads/2023/05/Free-Guide-Tabless-Cylindrical-Cell.pdf?srsltid=AfmBOoonHkOtwWZljm-CyBSTjd2YUv9YBonLWEoV4DKXMONHe-J2JWvO Or this for more in depth analysis https://www.sciencedirect.com/science/article/pii/S2352152X23033406...

If you can return it and get a smaller frame, you should do it.....

Very interesting. A few years back I actually developed a similar tensioner for the Hydra and even built a prototype. I ended up not buying the hydra and so nothing came of it. Glad to see someone brought a final product to market.

I think they use the frame of the crosslite evo fs10 and adapted the pinion MGU on it. https://www.bulls.de/ch-de/produkt/bulls-cross-lite-evo-fs10-750-2023-wave?AKLW=AKLW_75e54221&FARB=FARB_VY4EPG0D&RHOE=RHOE_00000600

This looks like the best full suspension step thru coming up :) Not sure when we can expect it in the US .... https://www.bulls-bikes.com/gb-en/product/bulls-vuca-evo-fsx-1-2024-wave?FARB=FARB_EV6KQ6I3&AKLW=AKLW_eee5268a&RHOE=RHOE_00000700

Then may be the best would have been not to bring it up :)

May be you should qualify your experience so it would help understanding it.

they should at least have painted the cover white ...

I have to admit it is not the best look...

May be you can get a thicker one, Which chain/sprocket thickness are you using?

Retrofitting the automatiq is farly easy. Enviolo has several videos on the process, and there is a thread on this site with someone who did it on a riese & Mueller

Do you know the model of the cells by any chance? With the exact cell model, we can look for the cell discharge curves at various amp draw, and create the appropriate table to match voltage and capacity. As an example, here is a table I made for my 12S 12P pack of Sanyo NCR 18650GA

Well the issue is that Gates does not make belt for every number of teeth, so you always have to check the chainstay for the closest available belt, and see if the bike can accommodate the small change in chainstay...

Going from 22/55 to 20/60 basically shifts the lower gear by a little over one gear. So unless he has to use gear one today with 22/55 he shouldn't miss it when going to 20/60

I would only consider it if 60T does not fit

Untighten the wheel, move forward to take the belt of the sproket, remove wheel, open the rear triangle, slide the belt out through the opening.

If a 60T sprocket does not fit, we can look at 19/55 (see below). For that @Ravi Kempaiah needs to confirm how much range there is at the rear axle to move the wheel forward or backward.

I agree, if a 60T sprocket fits, I think you should go for 20/60 with 130T belt. @Ravi Kempaiah would only needs to confirm that a 60T gates sprocket would not interfere with the rear arm!

You can download the excel sheet in post #4 to run any simulation below the screen copy of 20/55 65 With the same 128 belt, this corresponds to a 494mm chainstay or 5mm more, so the bike needs to have at least 7/10 mm available to move the wheel back