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Just my opinions and only based on my Mute Plus version YMMV as the Pro has more power: Given the elevation profile that you posted the Qiroll might not be the best choice. Depending, of course, on how much assist you are looking for. I live in a very hilly area and the Qiroll isn't helpful...

The Trigger pro works well for me, about 25 miles 50:50 mixed asphalt and smooth gravel. Holding pressure steady at 60psi for about a week as is the G-one tubeless with gorilla tape and orange seal. I like it and it was inexpensive

Finally got around to cleaning out the Flat Out, re-taped the tubeless rim and everything went smoothly and no leaks even though the Billy Bonkers aren't tubeless rated.

Nice, wife was there a couple weeks ago visiting her sisters (thought of by me as Selma and Patty) and friends in Michigan.

Tongsheng TSDZ2 is a reasonably powerful torque sensing mid drive. Probably similar performance as the TREK 50nm that I think I read that you have. Similar to my Yamaha 70nm mid drive anyway. Depends on which power version you get. Not sure about the Sturmey Archer 3 speed but the Nexus 3...

I wouldn't be confident with a front hub motor on skinny forks with what looks like forward facing dropouts in this Raleigh 3 speed. It has a three piece bottom bracket which should fit a TSDZ2, I put one on a '70s Sears with similar cranks. Chainguard would have to be removed or mount modified...

The couple tools to remove either one or three piece crank assemblies are inexpensive and the procedure is simple and easy for a person with a modicum of mechanical ability. Wear nitrite gloves and have a rag on hand for the small amount of grease that you encounter. There are eccentric bottom...

Did you just get a new Trek 50nm mid drive and are you satisfied with performance? If so you might like a mid drive Tongsheng TSDZ2 conversion. I've have two, a 48v 750w version and a 36v 500w and moved them around on several bikes including a shimano nexus 3 speed equipped bike. Smooth...

Just relaying my experience, yours might be different. On my gravel bike I installed a tubeless 40mm Schwalbe G-one allround performance and a 38mm Specialized Trigger Pro both on 17mm id rims using Gorilla tape for rim tape and Orange Seal sealant. Tires went on easily and sealed perfectly...

It's a 2019 BH gravel bike with Yamaha PW-SE. Nice bike with the exception of walk assist having been disabled by BH. I'll never forgive them for that. Seems to be more road bike equipped including Shimano 105 derailleurs and narrow rims. Trigger pressure range is 45-90psi, Specialized...

I thought the G-one went on easily enough but the Trigger went on even easier. Just minutes and no leaks whatsoever with soapy water test. At 50 psi measures 36.5mm on a 17mm i.d. rim, about 2mm narrower than the 700X40c Schwalbe.

The one tire that I've installed that was actually tubeless ready went pretty easily but I wouldn't have wanted to do it without an air compressor. Trigger pro just delivered, hopefully it will go on just as well.

These new posts got me going on my Qiroll again. Installed (again) with a gate spring which works pretty well. Nice day I'll try riding up my road. Triple chainring allows very low gearing, as low as 22-40.

Here's a picture of the 60 grit sanding belt. Has some debris stuck in it but not worn. I've used a small wire brush before to clean out dried debris build up.

Why not try the friction sticker that Qiroll provides and see how it works for you, maybe you'll have a different experience and it's easy to change anyway. I didn't come up with the sanding belt idea, I saw that the Gboost friction drive appears to use it, you can check their web site. It...

3dxl is definitely the authority and has way more experience with Qiroll than me so take this with a grain of salt: For me, using a 60 grit sanding belt worked much better than anti-slip tread tape of which I tried a few brands including Gorilla, 3M safety walk and a no name product sourced...

I did but they have a $15 shipping charge making it a $76 tire including tax while the Trigger Pro has great reviews, specs that would indicate better puncture resistance and a tread pattern that looks good to me, for $30 less - normally same price as the Pathfinder Pro but currently at reduced...

Since I couldn't find the Pathfinder Pro locally or on Amazon I ordered a Ebay Trigger Pro. I would have preferred 42c but only available size 38x700. Looks to have smaller knobs on the center strip. 60tpi and a belt which might offer better puncture resistance.

Thanks for giving your insight. Unfortunately the bike shop is closed today and their web site shows only the Pathfinder Sport which won't work for me. I'm liking the tread pattern for the Pathfinder Pro. I'll check Amazon.

Partly off topic Q. I need a tubeless tire to replace Schwalbe G-one (raceguard performance) for the rear wheel. I see the Pathfinder Pro is a 120tpi tire, how is it for puncture resistance? A local shop has the sport version in stock, I assume not tubeless and maybe not as good a tire given...