Recent content by Retrorockit

Some people add front motors and drive them through a front freewheel like the ENO. Another situation is disabling the rear freewheel to use the front one in a mid drive to allow shifting w/o pedaling. The ENO needs a straight chain line due to it's one row bearing, and the front freewheel needs...

These are being dumped on Ebay by Sick Bike Parts closeout. Including the White ENO Ebike freewheel. https://www.ebay.com/sch/i.html?ssPageName=&_ssn=brook45izy

I came across something on another project that might help if someone wants to make an upgraded TSDZ2 pedal shaft. I needed some 134mm square taper BB for a front freewheel mod. The ones I found instead of being drilled for a bolt, were threaded for a shouldered nut. Maybe that would help?

I've put CPU paste between the coils and the cover to get a wet joint there. Putting paste between the rotor and coils won't work because it's moving. There is a ferrro fluid mod that's done on hub motors that put oil with metal in it onto the magnets on the outside, to cool the rotor on the...

That looks like the ver.A rotor. Square cut gear right up to the laminations. I would say replace the whole motor assy. with the ver. B model. The shaft will be on the list of things to break if you don't. I broke mine at stock 1500W doing wheels up launched testing a chain guide. You need the...

Luna just got another batch of controllers in. Luna has enough buying power to get Bafang to do what they want. Luna also programs their controllers for throttle in 0 assist level so you can moto around. It depends on what you mean by new. NOS ( New Old Stock) is "new" also. The lowest prices...

I've done the front freewheel trick on a mid drive Ebike (the front freewheel is already there) you just have to PARTIALLY disable the rear freehub/freewheel like Shimano did with their FFS system. This is for safety reasons. There are 2 ways to do this. One is to use a very small zip tie to...

You didn't say what gearing you have already. You can go to Sheldon Brown's Bicycle gear calculator. For gear units enter your desired cadence, maybe 70rpm. https://sheldonbrown.com/gear-calc.html You can enter the rest of your bike spec. and try 3 chain rings at once.

Maybe Endless Sphere is dying because threads get crapped up with off topic nonsense that nobody cares about? Why don't you start a square tapered BB thread for squares.

The 2 advantages splined BB have over Tapered is that they can be drilled out to remove the dead weight from the center of the shaft. On my XComfort bike with XT cranks and hollow bolts I can see all the way through them. Also the same bolt and Allen wrench you put them on with can extract them...

One user at another forum reports running a Shimano 11-42 8 speed cassette with the Acera derailer. I don't have a part# yet, and haven't seen one for sale so far. But it looks like Shimano is getting serious about supporting their older formats.

I have a suggestion for a fix to prevent the broken crank shaft at the circlip groove. The problem is the reduction in diameter at the snap ring groove. Looking at the formula for torsion bar stiffness there is an exponent of 4 related to shaft diameter. I broke the 8mm motor shaft in my BBSHD...

Cambria Bikes had these OEM packaged (no hardware) in 160mm for $37. I added them to my XComfort bike (2004 26" KHS Team Softtail with slicks). https://cambriabike.com/products/shimano-rt86-6-bolt-disc-brake-rotor-only-oem?variant=37789850239158

Obvious;y you guys know more about bicycle brakes than Shimano. Why don't you put your money where your mouth is and make better stuff and offer it for sale? I have them on my bike and test them at 30mph dragging the rear brake going down hill. I can feel the consistency of them not getting...

The thermal conductivity of Aluminum is 215WmK, Stainless steel is 15Wmk. I think the alloy core will allow the heat to dissipate all the way Around the rotor better. If the rate of transfer is lower than the rate of thermal load, it will get hotter and hotter at the braking surface. This...