Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: is this compatible with Shimano HG51 8 speed cassette?
Document: This was an upgrade to the low level shimano FD that came on my Cannondale fitness bike. Gets the job done and saves some weight. Nice smooth shifting and worked well with the &#34;stock&#34; 8 speed shifter set that came on the bike. Worth the money if you are looking to upgrade a low level part or replace a worn out unit.
Very good derailleur which looks strong, has survived a couple of big rides and shifts smoothly and precisely. Am using on my 8 speed MTB with a 9speed chain. Runs nicely with no chain rub. Make sure you get the right spec'ed one for your bike.
I'm using it on a 3x8 drivetrain with an 8 spd chain without any problems beyond it taking a bit more effort to adjust to avoid rubbing. When this chain goes I'll probably install a 9 spd nonetheless.
i bought this derailleur to change my old shimano acera, and the change have been greater than i expected... it works real good and very fast and exact movement
I like Shimano parts I always try my best to use them when ever I need a part to replace on my bikes.For my self they don't get any better than Shimano.
I purchased used mountain bikes for my girls and decided to upgrade all of their components with Shimano equipment (this FD-M90 front derailleur, a Shimano Alivio M410-SGS Rear Derailleur, Shimano ST-EF65 brake/shifters, and Avenir 2D MTN grips) . After replacing stock shifters, grips and front and rear derailleurs, my girls have bikes with better components than mine. Plus, their bikes are now very easy to use and should last for years.
Paired with a 26/36/48 Deore crankset, and EF-51 shifters, this is a GREAT improvement over the Shimano FD-2303 that came stock on my bike. Hasn't required any adjustment since mounting on my bike a couple months ago and it gets used daily. I had been looking for chainguards to prevent over shooting the chain off the largest wheel, but it turns out I just needed a solid front deraileur.I really like the low profile of the bottom pull mechanism too. Very sharp!
shifts fine, it was a little heavier than my old deraileur. the only down side is this doesnt' have a little screw to open the cage, so you actually have to break your chain to thread it thru this deraileur. oh well, i was putting on a new chain anyway, but this was an unexpected missing feature for me.
You should really know what you are shopping for when searching for bicycle parts on Amazon or ebay. I've been a bike mechanic for years and sometimes I find deals on here better than my shop discount. This front derailleur has served me very well on a daily use commuter Franken-Bike. It shifts clean and is very sturdy. NEVER dropped the chain since initial set up! it is not a lightweight racing upgrade.
Would definitely recommend it.
Answer: yes