Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: Will this fit a shimano RS21 rim?
Document: tire was purchased as a replacement for 10+ year old Nokian 296.most of my riding is on hilly, snow packed dirt roads in NH,been out a couple of times and tire performs awesome, great tractionin climbs and corners.
Very good quality, they are made pretty solid and the weight matches :). I haven't lost any studs yet so that's good. You get crazy good traction in snow, ice, slush, but not so much on dry pavement be careful turning at speed. Off road these things are like tractors with endless grip.
This tire works really well on hard packed snow, but was below expectation on glare ice. I use these tires on icy mountain bike trails and overall they work really well. The traction on glare ice is about the same as riding on mud and the same level of riding care must be used to stay upright. However, in super slick icy places where fat tire bikes were riding right off the trail and crashing, I was carefully riding through.
These tires work as advertised and inspire total confidence on snow and ice. I put them on my MTB turned commuter bike and they've kept me riding through the worst of winter conditions. Love em. If you want to keep spinning all winter and then this is what you want. Only inconvenience is when the ice melts and you have to push these puppies on pavement - decent rolling resistance for sure, but worth it the rest of the time. No lost studs and holding up well after two months of daily riding.
These tires  go in  anything from mud to ice. I highly recommend these for anyone who  is serious about riding!
The tire does exactly what it is designed to do, provide traction and competent control in ice and snow. As a matter of fact, it makes riding in fresh snow a lot of fun.To tell you the truth, the first I saw studded bike tires I just chuckled, but I moved to Idaho where the the cycling season without winter tires is just too short. I am one that finds trainers very boring and being able to ride an extended season a very good thing.These tires grip like crazy.
Pretty close to riding on soft dirt. Definitely recommended.
I've used these tires for a few months now...they provide great grip. Before I put these tires on my bike I had a few spills. After I put them in...none. The grip on the ice. If you are tired of slipping and falling these tires are your answer.
Great tires. Not cheap, but they work well. No falls last winter unless we include taking a sharp corner at 20 mph! OUCH!
5-stars just because I can't give it 6. SERIOUS TRACTION!!! You will not be disappointed. I purchased this one because someone stole one of my 1st set. I bought my 1st set and used them for 6 seasons. I can't tell the difference between the new one and the 6 year old one w/o looking very closely. Nokian products are awesome. Getcha some.
Answer: no