BBB Kurbelabzieher Power Pull

Good quality item. However, the instructions could have been a bit clearer in one respect. Pictorial guides are useful, but sometimes adding the odd word makes following them more useful still. On first attempt at removing my old crank, thinking I was closely following the guide, I started to strip the thread. This was because it is not really made clear that you need to open the main bolt by fully loosening it, before you attach the puller. Otherwise the device will not penetrate the crank arm sufficiently and possibly start to strip the thread. Luckily, I noticed before inflicting too much damage. I admit this is a silly novice mistake; but this is basically what I am. However, I'm sure I am not alone in making the mistake described, as I have seen other reviews of similar devices where individuals have managed to strip cranks. Be careful when using the puller for the first time. GOOD tool when used correctly.

I’d like to say, I’m a total novice with bike repairs. My daughter’s chain came off and we wedged between the front crank and the frame. 2 hours of effort left me with nothing but sore and filthy hands. I figured I’d need to pull the crank out a little to loosen it. I did what most inept dads do pull, strain and curse.Had it not been for all shops closed because of COVID-19 and the prospect of the kids not even able to go on their bike I would have thrown the bike in the van & taken it to a bike shop.I didn’t know until I googled the problem that you needed a special tool to pull the crank out.Then I nervously read the reviews where people had stripped threads and effectively ruined their bikes.I was not confident!!I carefully studied the pictures on the card. Removed a section of the tool for my ‘square tapered crank’ (who knew?)Then wound it in with a 15mm spanner and tightened the bolt with a 14mm socket. It slid out, I released the chain (using gloves this time) and tightened the bolt back up.I only flipping did it! Wow, big smile (reestablished credentials as hero dad who can fix anything- title lost some 6 years ago!)Fantastic worked so well - I also don’t usually write reviews but I was so chuffed I did it and well, I have a little more time on my hands.Thanks for a simple easy to use tool.

Excellent delivery time. Good quality lot better than the cheaper ones works perfectly.

Well built and good value. HOWEVER: Has a pivoting end on the pusher rod which is wider than the narrow end of the square tapered hole on my cranks. Didn't notice this when I tried the first one and ended up stripping the threads of my crank. Winding the pusher all the way out removes this pivoting end leaving a narrower section that passed through the hole and worked just fine to remove the crank.

Great little tool feels well made and very strong. First time I’ve ever done a crank pull there is a really useful Halfords video on this explaining how to do it.The most important thing is to make sure you screw the crank puller in fully. Otherwise if you only have it screwed in a bit it will sheer off the threads of the crank and pop out. Then you are doomed.Very simple once you know how and this tool is great and well made.So to be clear on steps.... You have to rotate it to retract the pin bit As far as possible -then fully screw it into the crank then rotate the pin bit with a Spanner which pushes the crank off the bike.There are diagram instructions and they are ok ish. Good luck.

Take your time with this tool and it works perfectly - clean out the thread of the existing chainring with chain cleaner till it’s like new and then a smear of assembly grease or Vaseline etc as u wind it in until the thread of the tool is fully in (u need to make sure the inner part is retracted to do this) and then simply turn and it comes away ...I think any of the negative reviews are people who didn’t do this - great little tool

The tool is well made, but with flaws. One is unavoidable, the other is a design choice.1. The unavoidable flaw. The tool screws into alloy. Operation strains the alloy threads which failed under the stress of pulling a stuck crank. They stripped, even though I used a short spanner. The tool might be ok for cranks pressed on greased tapers.2. The design flaw. The blurb contains: "It has a dual function removable cap, so the pulley (sic) can be used on all over-sized spindles. Without the cap the tool can be used on all standard spindles." The removable cap takes up space and I had to remove it to insert the tool. This left the tool with a hollow screw to press against the end of the bottom bracket spindle. My spindle is externally threaded ("outie"). The tool's hollow screw damaged the external thread, and itself, but is probably still usable for loose cranks. I solved the stuck cranks using a three arm puller, but be aware these are not really compatible with 5 arm crank spiders.

I don't normally leave reviews but thought I should for this as there are lots of similar items for sale with mixed reviews. I decided to give this one a go because it was under £10 and I only needed to use it once. Packaging comes with detailed instructions. If you have square tapered cranks like I did, then you have to pull off the end piece which is for other types of bottom brackets. Anyway, feels pretty solid and worked first time using an adjustable spanner on the end to pop off the crank arm. Reckon it will last as long as I need it for.