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We get a lot of motors in the workshop where the owner has gone with the old adage... I'll fix it when it breaks! Unfortunately, with an ebike motor once a different noise is noticed coming from the motor, it's already costing you more money every pedal stroke! However, some people try and push...

I have posted this on the general forum in the hope of reaching as many Bosch powered bike owners as possible. About a year to 18 months ago, Bosch started supplying and fitting a felt seal. It fitted behind the circlip on the right hand side of the crankshaft, in the space between the...

Want a stronger, reliable and more watertight Brose motor? This video shows what we're doing at Performance Line Bearings to achieve this and how we're doing it. This service is available for ALL Brose motors regardless if it's for a specialized or a Bulls etc., made in 2015 or 2020, whether...

You don't really notice a slightly stiff crank while pedalling forward, but if you turn your crank arms backwards and feel resistance you may want to dig a little deeper. The main reason I am writing this post is because of several other posts I have seen on this issue where people with stiff...

Sorry its taken so long but for those who asked we have delivered, and what an example we found to repair!

https://youtu.be/_XZNLVQ0qno

I thought anyone running a Bosch motor may find this interesting? I have loaded this as a pdf because there are several large photographs showing wear and tear shots from a Bosch Performance Line motor after 20,000 kilometres. What we found was fairly definitive proof of how far one of these...

Hi all, thanks for reading this, if you make it to the end! I am posting here because I’m asking for your thoughts and opinions on Brose motor repairs. Please leave a comment if you can. 6 months ago, I started a company called Performance Line Bearings. My main aim was to supply bearings and...

If you have ever wondered, can I fit a newer Performance Line CX motor into an older Performance Line equipped bike? Especially without up-grading, re-programming, changing wiring or controls! Well, I thought I would try it, and... yes it is possible! Its also easy! If you want to fit your...

If you live in Australia or New Zealand and need bearings or overhaul service for your Bosch motor, we have teamed up with Spokes cycle shop in Australia. This should ensure much faster delivery and same country service or overhaul. Initially, Spokes will be supplying our Bosch crankshaft...

I am sticking this post here as well as in the tech forum only because there are a lot of Haibikes with Yamaha motors and I hope some of the owners find this interesting. After starting with the Bosch motors we have just completed a Yamaha PW motor strip and overhaul. And, I have finally sourced...

After starting with the Bosch motors we have just completed a Yamaha PW motor strip and overhaul. And, I have finally sourced the grooved bearings, seals and O-rings, now all available on my site. We are currently working on the Impulse-2, Panasonic and Brose. Much more content will be added...

Hi, I ride an old (2015) Haibike Xduro All Mtn Pro. She has done nearly 6,000 miles and mostly through the dirtiest, nasty, boggy, sandy terrain I could find. I use it more like a tractor than a mountain bike, subsequently, I wear a lot of things out! One thing that got me more than most was the...

I have introduced myself here: Hi From the bearing guy - EMTB Forums But as this forum is specifically for the Bosch motors I would like to make myself known and available for technical help if members need it? I currently run www.performancelinebearings.com and in this capacity, I have probably...

As a newbie on this site, I thought I would introduce myself here first and say a bit about what I do and why I did it! A few months ago I had a crankshaft bearing fail on my Bosch motor, no problem I thought, as it's out of warranty, I'll strip it down and buy a new bearing. Turned out it...