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Suggest you reach out to Trek Customer support if you want to know 100%. Trek confirmed for my 2021 Rail 9.7 that 53 mm to 55 mm was the accepted range. If you are running Shimano with the TSB ring there were some issues with a 1 mm spacer to place between the motor and the chainring making the...

The way a carbon wheel feels while riding an eMTB, its durability (hubs, spokes, rim) , warranty, and then weight are factors to consider when choosing a carbon wheelset for ebikes. Weight is the last decision factor as it is way less important than the other factors to us in an EMTB use...

Been riding a Trek Rail with Bosch motor - great bike. Just added a Yeti 160 E with Shimano EP 8. Any suggested setup for the Shimano motor control to make it most like the Bosch unit I am accustomed to riding. I realize the Shimano will unlikely have the same grunt as the Bosch. Tend to run...

I would invest in two person Burley trailer and put both kids in it and enjoy the time riding with the kids. If you choose the Burley route you will for sure want to keep your full power EMTB. We live in the SF bay area and spend alot of time in the sierra mountains so we do alot of climbing...

Good idea just hit unwatch on the thread, I just did so I am out going forward. Good luck guys.

Confirmed with local Specilized dealer it is 50 NM just like Shimano is 35 to 45 nm.

See attached

FWIW - TQ 50 NM, Brose 50 NM and Shimano 35 to 45 nm is the lockring torque spec for essentially the same part on a very comparable ebike motor ie. use scenario- so it is likely the Bosch outsource manufacture just got it wrong when they thought 25 to 30 nm would work given the amount of...

I have tried several times to obtain a written statement but so far Bosch is not willing to put the new spec in writing, instead they are going around to local bike shop/bosch dealers and verbally telling them the new spec and having them update all the bikes on the floor to the new spec. This...

Okay so Europe and US Bosch disagree.

Apparently loctite can sometimes lead to inaccurate readings on your torque wrench, so bosch continues to instruct grease only. V

I went into my local Trek factory store today to pickup some spare lockrings, as they still had the 25nm to 30 nm printed on them I asked the service manager if he could provide me anything in writing that the lockring torque specification had changed he confirmed that the new spec is 35 nm to...

Neither of our bikes came with o rings - E Thirteen's TSB advises against using one and has a allowance for Bosch that states you are still in spec if you don't use one, but that is an interesting variable. We have had to abandon the SRAM direct mount chainrings - just can't find them and use...

The issue I had was that your post implied the problem was more likely to happen due to install error vs. a problem with the torque spec. I agree that when possible replacing a bolt or lockring that has been exposed to any load it was not designed for after coming loose is good practice, but...

Used a park tools torque wrench calibrated to support both forward and reverse torque for my first two installs. Bike shop used a snap on tools torque wrench. Each time set to 30NM. No visible damage to threads and lock ring held torque smoothly. Glad some folks are not having problems with...

Does the service manual have an update date? If it is the original service manual before a TSB it will have the incorrect torque number. See below, for example this is a TSB by E Thirteen (one of the largest OEM crank providers) that clearly states not to use the O-ring and they claim they have...

I am one of those folks that owns several torque wrenches that I calibrate regularly, so I understand you folks are rightfully reluctant to take the information I have posted stating a 40 to 45 nm torque is the likely correct torque for a lockring vs. the printed 25 to 30 nm without trying to do...

Sadly Bosch customer service support refuses to give consumes access to the TSB's, they are worthless. My local mechanic did mention that the torque spec on cranks and BB cups is generally 40 to 50 nm for as long as I can remember ====so I am pretty certain bosch got it wrong on the label.

After following Bosch instructions (grease don't loctite) the chain ring lockring nut to 25 to 30 NM and having it fall off 3 times I was pretty annoyed and about to start looking into drilling it out and using safety wire. I even went to the local Trek Dealer and had them torque it down in case...

Easiest on your back would be to get a small enclosed trailer to pull with the van that you can wheel the bike into. V