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Wanting to change my 17T front chainring back to a 15T to help with riding up steep hills. My current 11 speed chain is reading .25 so not ready for changing yet but would it be advisable to change it anyway if fitting a new chainring? KMC e11 chain £33 15T chainring £17 Replacement Bosch O...

Any suggestions for my rear derailleur problem pease? My Shimano Deore XT rear derailleur on my Cube Reaction Race bike got twisted so I've fitted an identical replacement. Problem is, I can't get it adjusted correctly. I can change up into each gear fine, but can't get it onto the largest...

Anyone know how easy/difficult it is to obtain a replacement key for removing the bosch battery from my Cube Race ebike? The bike repair shop may have lost it whilst my bike was in for repair, but they state I didn't leave the key with them, though I believe I did, but can't prove it. So I may...

Anyone know what software version my 2018 Cube ebike would have had installed when I purchased it at end of 2017? Whilst my bike is in the local bike shop for repair, they have mistakenly performed a software update, and I want it reverting back to original. Just wondering what version it...

I have a 2018 Cube ebike with Bosch motor and I use a Badass dongle (version 3.4??). Whilst my bike is in the lbs they have updated the software as forgot to ask them not to. They have offered to revert it back for me. Does anyone know if my Badass will still work with the latest update, or will...

Does anyone know if the Bosch speed sensor cable on my Cube Race 500 routes along the bottom of the seat post tube? In other words, if you were to remove the seat & post and shove a stick down there, would it come into contact with the cable? The reason I ask is my speed sensor cable has...

My 2018 Cube Reaction Race is at the lbs for fault diagnostics, and they report that it has had 115 battery charges and the battery has reached its highest temperature of 44 degrees which is unusually high. They suggested that it must have been left out in the sun, which it hasn't as its never...

Any suggestions for this please? Got the '503 ERROR' come up on my Purion display today. Bike was riding fine but then when freewheeling downhill I noticed the speedo said zero mph. I stopped and turned the display off/on and same thing again. Set off riding and could feel that the motor wasn't...

I'm having a go at replacing my cassette, and have just taken the old one off ready for when the new one arrives. Is it advisable to apply any kind of lube over where the new cassette slides onto. or best left dry?

Snapped my rear mech today. Looks like a link broke in the chain and dragged the rear mech around my cassette. Sounded horrible. Looking at the spec of my Cube Reaction Race it says its fitted with a Shimano XT RD-M8000-DGS ShadowPlus 11 speed rear derailleur Searching online for a...

Anyone know the differences between the KMC chains please? I'm looking for an 11 speed chain, but there seem to be a few different KMC chains to choose from, with price differences.. KMC X11SL £47 KMC X11EL £29 KMC X11GY £25 KMC X11.93 £15 KMC E11EPT (ebikes) at £37 Whats the main...

I've started suffering from chain slipping since recently putting a larger front chainring on my 11 speed 2018 Cube Reaction Race. It's only when i'm in 10th & 11th gear. I went from the standard 12T chainring to a 15T to get a bit more top end speed, and fitted a new chain of the same size at...

Thinking of getting a set of these for commuting on my Cube Reaction Race with 29" wheels, but most sellers advertise them as 28" tyres. Are they one and the same? Or do they actually do them in a 29" size as well?

I fond this interesting to watch...

Just purchased a lifting hoist for when I'm working on my ebike in my garage, as I find that my bike stand doesn't lift my ebike as high as i'd like it to, with me having to either bend down to work, or pull up a stool to sit on. I've started hanging my ebike from the garage roof but its a heavy...

I had a new chain (Sram PC1110) fitted to my 11 speed Cube Reaction Race ebike in the middle of February, and its now showing 0.5% wear, which according to the Park Tool chain checker guide means my chain should be replaced. I ride about 200 miles per month, so in the three months since i've...

My speed sensor (if thats what its called) has broken away from its mounting screw. Not sure if its been yanked off its when riding off road? Its still being held on by the screw, but not for long. You can see in these photos that the hole is now enlarged where the fixing screw goes through...

Whats the rule of thumb when setting the correct pressure in my Rox Shocks forks on my Cube Race ebike? Am I right in saying that when sat on the bike there should be about 30% travel? Ive just bought a Rock Shop High Pressure fork pump and noticed when fastening it to my fork valve the...

I wonder if they had dongles fitted?

Can anyone suggest a good helmet please? Im looking to buy a good quality helmet for commuting, but I want one more like a MTB helmet with protection down the back of the head, and sides. Im happy to buy a branded helmet although this might not necessarily mean its the best. Adjustable peak...