Fast Fatbike
09-30-19, 09:36 AM
#1
meh
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Fast Fatbike
I hear lots of people complain that fatbikes are "slow" ... they are slow in some conditions; but they can hold their own in other conditions.
I'm half stroking my ego and half starting a thread to talk about getting fast with a fatbike.
I finished The Heck of the North on Saturday in 7 hours 6 minutes on my drop-bar Pugsley (average moving 15.8 mph & total average 15.2 mph). This 108-mile course is a mix of gravel, ATV/snowmobile trails, and some paved highways. The bike is mostly stock, expect the Salsa Woodchipper bars, Gevenalle shifters, and Fat-B-Nimble tires.
This isn't the first time this bike has been fast - on the 2017 Filthy 50 we had perfect conditions and I finished that 52-mile gravel course in 2 hours 57 minutes (averaging 17.6 mph - moving & total)
Do you go fast on your fatbike? Let's hear about fast days and modifications you made to make the fattie a little faster.
I'm half stroking my ego and half starting a thread to talk about getting fast with a fatbike.
I finished The Heck of the North on Saturday in 7 hours 6 minutes on my drop-bar Pugsley (average moving 15.8 mph & total average 15.2 mph). This 108-mile course is a mix of gravel, ATV/snowmobile trails, and some paved highways. The bike is mostly stock, expect the Salsa Woodchipper bars, Gevenalle shifters, and Fat-B-Nimble tires.
This isn't the first time this bike has been fast - on the 2017 Filthy 50 we had perfect conditions and I finished that 52-mile gravel course in 2 hours 57 minutes (averaging 17.6 mph - moving & total)
Do you go fast on your fatbike? Let's hear about fast days and modifications you made to make the fattie a little faster.
Last edited by Hypno Toad; 10-01-19 at 06:14 AM. Reason: added total and moving average speed
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09-30-19, 10:13 PM
#2
Senior Member
It's rare when I go fast. I don't take trails, I blaze my way across beaches, river beds and forests.
For those with fatties, it's not a criticism it's a fact of life. Big, wide tires with low psi are slower.. Of course it's a trade off to be able to go any where. You don't need to convince us on this forum.
For those with fatties, it's not a criticism it's a fact of life. Big, wide tires with low psi are slower.. Of course it's a trade off to be able to go any where. You don't need to convince us on this forum.
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10-01-19, 06:37 AM
#3
meh
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IMHO - the fatbike is a more diverse bike than the average person understands. It'll never compete with a road bike on pavement, but doesn't need to be labeled "slow" either.
To be clear, I do love blazing trails too. Well truth is, there is supposed to be a trail here, but 4 months under flood waters wiped most signs of a trail away. I spent a couple hours following a line on my Garmin, saying 'the trail goes there, really ?!?!'
To be clear, I do love blazing trails too. Well truth is, there is supposed to be a trail here, but 4 months under flood waters wiped most signs of a trail away. I spent a couple hours following a line on my Garmin, saying 'the trail goes there, really ?!?!'
10-01-19, 08:41 AM
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What I am finding is that it is a good cross over bike between a downhill mtb that sucks to ride any distance and a road oriented bike that bogs in loose or gnarly terrain. With the tires pumped up it's a pretty fast off road machine.
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10-01-19, 09:23 AM
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I finished The Heck of the North on Saturday in 7 hours 6 minutes on my drop-bar Pugsley (average moving 15.8 mph & total average 15.2 mph). This 108-mile course is a mix of gravel, ATV/snowmobile trails, and some paved highways. The bike is mostly stock, expect the Salsa Woodchipper bars, Gevenalle shifters, and Fat-B-Nimble tires.
10-01-19, 09:24 AM
#6
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10-01-19, 11:20 AM
#7
meh
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Thanks!
I had a lot of things working for me on this ride: great weather for me (cold & clear), got into strong/large groups, and I've been able to focus of my training leading up to this ride. The stars were aligned!
I had a lot of things working for me on this ride: great weather for me (cold & clear), got into strong/large groups, and I've been able to focus of my training leading up to this ride. The stars were aligned!
10-01-19, 12:26 PM
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I get passed by fast fat bikes on the local MUP all the time - of course these are e-fat bikes. They've become a real common thing around here.
10-01-19, 03:36 PM
#10
meh
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Wind doping.
Just like The Heck of the North, we had perfect conditions on 2017 Filthy 50. Light headwinds on the start of the course when we were in big groups and fresh. By the time we got to the back half of the course, the wind had picked up and gave us a great push to the finish. I recall drafting a tandem (great for drafting) but they were able to ride away from me cause I was spinning out on flat roads at 25 mph (I need a bigger chainring). The first place rider set a course record at 2:20 - nearly 22 mph over 50+ miles of gravel roads 
Just like The Heck of the North, we had perfect conditions on 2017 Filthy 50. Light headwinds on the start of the course when we were in big groups and fresh. By the time we got to the back half of the course, the wind had picked up and gave us a great push to the finish. I recall drafting a tandem (great for drafting
) but they were able to ride away from me cause I was spinning out on flat roads at 25 mph (I need a bigger chainring). The first place rider set a course record at 2:20 - nearly 22 mph over 50+ miles of gravel roads
10-01-19, 05:02 PM
#11
Jedi Master
I rode a 600k earlier this season with a woman who finished on a fatbike. I thought it was pretty impressive.
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10-02-19, 10:36 AM
#13
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10-02-19, 10:46 AM
#14
Senior Member
I love my comfort bike and ride it an hour or two 2 - 3 times a week. It is so comfortable I feel I could ride it 600k or 6,000. I just have no ambition to do so. It won't be fast, But the first 50 - 100 km might be fun. After that I'd rather spend the time gardening, Washing the car, Or socializing with friends or family.
Speed wise, Look at about 17 - 18 kph average for a recreational cyclist on a stock 3.5" Fat bike with moderate effort. The same rider with the same effort might do 23+ kph on a flat bar road/Hybrid bike like Giant's Fastroad.
That said a lot of us ride comfort or hard tail mountain bikes that might only average 19 - 21 kph, So I don't think a Fat bike is terribly slow. I think if you are riding in soft sand, Mud, or snow, Then a Fat bike would make sense. Otherwise there are better options. Also, if a fat bike motivates a person who wouldn't otherwise take up biking, I think it's a great idea. There is so much more to biking then speed, Especially if it is comfortable, Which those 3.5" tires should provide.
10-02-19, 11:05 AM
#15
Jedi Master
It's all about comfort and having the ambition to take a 600k ride. It may well be a Fat-bike is the best choice for her in that regard.
I love my comfort bike and ride it an hour or two 2 - 3 times a week. It is so comfortable I feel I could ride it 600k or 6,000. I just have no ambition to do so. It won't be fast, But the first 50 - 100 km might be fun. After that I'd rather spend the time gardening, Washing the car, Or socializing with friends or family.
Speed wise, Look at about 17 - 18 kph average for a recreational cyclist on a stock 3.5" Fat bike with moderate effort. The same rider with the same effort might do 23+ kph on a flat bar road/Hybrid bike like Giant's Fastroad.
That said a lot of us ride comfort or hard tail mountain bikes that might only average 19 - 21 kph, So I don't think a Fat bike is terribly slow. I think if you are riding in soft sand, Mud, or snow, Then a Fat bike would make sense. Otherwise there are better options. Also, if a fat bike motivates a person who wouldn't otherwise take up biking, I think it's a great idea. There is so much more to biking then speed, Especially if it is comfortable, Which those 3.5" tires should provide.
I love my comfort bike and ride it an hour or two 2 - 3 times a week. It is so comfortable I feel I could ride it 600k or 6,000. I just have no ambition to do so. It won't be fast, But the first 50 - 100 km might be fun. After that I'd rather spend the time gardening, Washing the car, Or socializing with friends or family.
Speed wise, Look at about 17 - 18 kph average for a recreational cyclist on a stock 3.5" Fat bike with moderate effort. The same rider with the same effort might do 23+ kph on a flat bar road/Hybrid bike like Giant's Fastroad.
That said a lot of us ride comfort or hard tail mountain bikes that might only average 19 - 21 kph, So I don't think a Fat bike is terribly slow. I think if you are riding in soft sand, Mud, or snow, Then a Fat bike would make sense. Otherwise there are better options. Also, if a fat bike motivates a person who wouldn't otherwise take up biking, I think it's a great idea. There is so much more to biking then speed, Especially if it is comfortable, Which those 3.5" tires should provide.
10-03-19, 05:24 PM
#17
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My fat bike doesn’t even go fast down hill. If I want to go fast (for me), I ride my road bike with 700x23s.
I view my Mukluk as a tractor and my road bike as a race car.
I view my Mukluk as a tractor and my road bike as a race car.
10-07-19, 02:08 PM
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Fast Fat
I hear lots of people complain that fatbikes are "slow" ... they are slow in some conditions; but they can hold their own in other conditions.
I'm half stroking my ego and half starting a thread to talk about getting fast with a fatbike.
I finished The Heck of the North on Saturday in 7 hours 6 minutes on my drop-bar Pugsley (average moving 15.8 mph & total average 15.2 mph). This 108-mile course is a mix of gravel, ATV/snowmobile trails, and some paved highways. The bike is mostly stock, expect the Salsa Woodchipper bars, Gevenalle shifters, and Fat-B-Nimble tires.
This isn't the first time this bike has been fast - on the 2017 Filthy 50 we had perfect conditions and I finished that 52-mile gravel course in 2 hours 57 minutes (averaging 17.6 mph - moving & total)
Do you go fast on your fatbike? Let's hear about fast days and modifications you made to make the fattie a little faster.
I'm half stroking my ego and half starting a thread to talk about getting fast with a fatbike.
I finished The Heck of the North on Saturday in 7 hours 6 minutes on my drop-bar Pugsley (average moving 15.8 mph & total average 15.2 mph). This 108-mile course is a mix of gravel, ATV/snowmobile trails, and some paved highways. The bike is mostly stock, expect the Salsa Woodchipper bars, Gevenalle shifters, and Fat-B-Nimble tires.
This isn't the first time this bike has been fast - on the 2017 Filthy 50 we had perfect conditions and I finished that 52-mile gravel course in 2 hours 57 minutes (averaging 17.6 mph - moving & total)
Do you go fast on your fatbike? Let's hear about fast days and modifications you made to make the fattie a little faster.
10-07-19, 02:27 PM
#20
meh
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As the other poster has said, you're a beast, in the best possible way. How wide, in real life do the fat b nimble tires run? I've seen some say that they tend to run smaller than the stated 3.8" I'm still trying to wear out my my 120 tpi Nates during the non-studded season before I buy another set of tires for my pugs.
10-07-19, 02:33 PM
#21
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Hmm. I do some single track on my Pug...needless to say, I don't skid out on it, lol. I switch to Dillingers once it gets some ice build up, but would the Jumbo Jim's work for snow, etc prior to needing studs? I've heard they are a fast fat tire, though in real world weights, maybe very similar to what you are running.
10-08-19, 06:57 AM
#22
meh
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Hmm. I do some single track on my Pug...needless to say, I don't skid out on it, lol. I switch to Dillingers once it gets some ice build up, but would the Jumbo Jim's work for snow, etc prior to needing studs? I've heard they are a fast fat tire, though in real world weights, maybe very similar to what you are running.
* might get to try them on snow this weekend, Minneapolis has snow in the forecast .... in October.
