Are Mullet Bikes Faster? | Is Mixed Wheel Size Better For MTB?
ฝัง
- เผยแพร่เมื่อ 15 ก.พ. 2020
- With downhill and enduro racers of all statures testing and racing mullet mountain bikes - a 29" wheel up front with a 27.5" in the rear - we thought we'd do some investigating and figure out whether this MTB set up is actually faster 🤔
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For a second i thaught that was the "surfer guy" from sam pilgrims channel making an appearance
Only would happen when changing tyres .
Definitely been raiding the Pilgrims props department...
Need to get the two mullets together for a video!
To be faster than Blake, you have to be a Super Dude?!?! ;)
Same😂
The same XD
Mullet Blake is the cousin of the Californian from Sam Pilgrim’s channel 🤙. You say it was the smaller rear wheel, I say it was the hairdo🤘🤣.
trcXL was thinking the same thing when he popped out of the woods 😂
Being a Californian I'm triggered 🤣
Yea
That mullet hair was adding lots of downforce! That made it faster :D
A little known fact is that they are actually brothers separated at birth. They've lived in two different countries ever since :)
I feel like Blake's tech videos are just an excuse for him to dress up in all sorts of weird outfits
and? 😂
@@wheetbread1 he looks fabulous
@@richardwarmington5394 he is definitely beautiful people
thats what we others call weekend XD
This episode : dress as Billie Ray Cyrus 🤣
Motocross been running mullet for years
not just for years, for _decades_
@@leftaroundabout that's years too, but a bit more
@ Nah, it's still just years., which is plural for year. Could mean 2, could mean 20, could mean 200 or 2 million. Depends on the context...
At least for century bro..
So have motocross fans. 😆
I get the feeling that why the mullett version was faster was more to do with the geometry of the bike after fitting the smaller rear wheel, rather than just having a 27.5" wheel in the rear. Blake said he felt more comfortable on it downhill but it climbed terribly which i would put down to the geometry. It'd be interesting to see a 29" wheeled bike with the same, slightly slacker head angle and overall geometry as the mullet bike to see if it was faster or as fast to see if the wheel size actually made a difference.
Probably more to do with comparing 1 run on each... literally the worst way of testing. Should have run at least 5 runs alternating. Then rested and started again starting with the other bike instead
Matthew webster I'm always a bit sceptical with these single run comparisons, the more you ride a trail the more familiar you become with it and the faster you go. I'd say the second run will usually be faster than the first.
My Geometron G1 is set up properly for 650/29 hybrid wheels, its great, but I bet a 29/29 cruises faster and is smoother over rough, the 29 front end was certainly smooth over rough ground than the 650 when I swopped over on my previous G16 back in '18. However, I also bet the hybrid setup turns in better and pumps better. so, being faster would be very track dependent IMO
Mullet Blake should meet Californian Sam XD
26in in the back and a FatBike wheel in the front ;)
You may lose races, but you’ll win hearts.
Think of that front end grip. Lol
That's basically a reverse Schwinn Stingray bicycle.
now I honestly think 26 in the back plus 27 in the front might win you some races
Go all early 2000s specialized and make it 24 in the rear!
When mullet blake appears you should play „Danger Zone“ from top gun.
I’m liking the step up in graphics, quality content as always lads
I really like these types of videos.. keep them coming!
Riding full 26er dh bike for 4 years... last month. i put a 27.5 tire on front and i really feel the difference having the mullet setup. Cant deny the bike runs faster with the mullet setup compare to the full 26..
I'm confused. The mullet bike was faster on black by 4 seconds, blue by 1 and red by 2, and overall it was faster by 4 seconds? How does that work?
The overall time is even more confusing because 1:50+2:21+1:02=5:13, but apparently it was 4:33? What am I missing
Times are 5:20 and 5:13. From what I can see blakey cant add?
Session times excluded the short climb inbetween
rounding maybe?
segments overlapping maybe? Defo needs clarifying.
It's the metric system.
I wonder how much course familiarity helped with the second run
He's ridden that bike park for years, he knows the trails there well.
@@mrvwbug4423 you still are always faster on secind run anyways
I always find that my fastest runs are often my 2nd or 3rd. You just know how the trail is going to be on your second run and your more in tune with the bike on that run.
Mullet is way slacker and i think because of lower center of gravity. Hedtube abgle change is like putting a bigger fork. I think strive has 160mm fork as standart and changing that with 200mm fork.
Would be interesting to see same thing going up the hill and do combine times.
With 1 run for each wheel setup this wasn't anywhere near scientific. Just another subjective 2 cents from some guy who rides bikes. Kinda pointless to speculate about sources of error
Racing motocross for all my life I’ve always thought about this as the front wheel is Bigger than the back and how it would effect a mountain bike. Mint video 👍🏽
I ride a 1992 Koga Miyata SkyRunnerCarbolite, last year I've mulleted the bike to 27,5" frontwheel combined with a 100mm suspension fork. Resulting in a nice 2020 style 65 degree headangle.
And a 67 degree seat angle ..... :D
@Anton Chigurh instagram com/p/B8oEMirhhxL/
I was kinda expecting such results. The advantages and disadvantages looked so obvious.
By the way, I loved the way you blazed past those trails with the wig!!!
I have been running my Liteville 301 with 27.5 x 2.6 DHF and 26 x 2.8 DHRII for 2 years before the 2.8 I ran a 2.4. Love this set up!
Could you do a video explaining the Click Clack settings and pros and cons of each. I've never heard anyone else bring this up and I'm just curious. Thanks for sharing your time and knowledge. Love your vids and I'm a huge fan of GMBN. I haven't watched every video yet, but working on it.
Thanks Blake! I'm excited to try a Mullet set up on my 2019 Megatrail.
Mainly because this set up will allow me to hover around the same geo as the orginal with adjustable reach and stack heights.
The stock seat tube angle is pretty steep too, 76°. That shoild will help in climbing.
Finally a 27.5 is probably a "better" bike to convert to a 29er since the BB height will be already on point. Adding a 29er upfront will only raise it just a few mm.
Should have included a 27.5" front and rear time for further comparison!
@blake the geometry numbers do not seem right. Did someone calculate based on difference in wheel diameter instead of radius? There is no way the mullet setting changes the angles by 2 degrees or drop the BB by 4cm. Can you have someone double check?
Another great testing video #GMBN
Great video Blake and Mullet Blake sick dude!
Thanks for explaining mullet bikes. For years I’ve wondered why dirt bikes have different size wheels and tires, your explanation makes complete sense for both dirt bikes and mountain bikes
More videos Kiel these. PLEASE love them 😂🤟
*like
The Mullet hair style is short at the front and long at the back. So if everyone insists on using this terminology the 29" wheel should be at the rear and the 27.5 at the front
Yup. All this mullet talk should be renamed “reverse mullet”. It stupidly confusing
My conclusion with mountain biking is that we are finally learning the motorcross guys had all this figured out a long time ago! Cool vid
What about a 27" front and rear against 29" front and 27" rear?
This video was made in past.
horrible!
My old Specialized Big Hit from 2003 has 26" front and 24" rear from the factory...i totally understand de "confidence" factor with such a setup. Nice vid!
I'm running a mullet on my Scott Ransom and absolutely love it. It's super flickable and easy to throw around but still rolls over rocks and logs!
Fun video! Great work Blake and team. I’m curious if the results would be different if you controlled for geometry, particularly head angle. Maybe next time get some head set cup to slacken out the 29er to the same HTA. Obvious 2deg slacker and a lower BB can make you feel more confident. If you want to take it further, put super heavy tires on the 27.5 to match the rotation inertia of the 29er.
Great video full of important details
Wow that was some serious bad ass riding, you the man !
I've been Frankenstein mullet bikes 4ever. Me being short only 5'5" with inseam of 29" & a regular length torso I fall in between SM 15.5" bikes & MD 17.5" bikes. I've always ran missed match size wheels....tall front & short rear.
only problem was NO rear brakes until discs brakes came out.
I ride an Trek Fuel EX MD 26" front & 24" rear. Santa Cruz Superlights, Hecklers, & Specialized Stumpjumpers all with this 26" F & 24" R....I'm also known for drilling & tapping & installing zerk fittings to headsets, bottom brackets, & hubs..my next mission is to customize a NEXUS hub for a crank bottom bracket & single
speed rear hub....mullet bikes are great for jumpers & fast corners & amazing for descending.
Don't need a test video to figure this out. Simple physics, established a long time ago. Smaller back tire = better acceleration, but lower top speed (rpm x circumference). Motocross uses this setup for this reason. You won't find it on cross country mtb or touring motorbikes, for example. What you use all depends on the style of riding.
Make comparisons between a motocross and a mtb is a nonsense... the riding technique the weight the response on trail and the diameter difference between front and rear wheel are absolutely not the same as the mtb... that's really a nonsense comparison.
If the difference in radius of the rear wheels is 1.75 cm, how could the BB fall by 4 cm? You dropped the rear axle by 1.75 cm, the BB should have dropped by maybe 1 cm as the amount of drop would decrease towards the front axle.
prusak26 I think they measured both and the only possible explanation is that with the 29” wheel the SS was in XC mode which raised the BB and with the 27,5 it was in DH mode. That explains the otherwise impossible amount of change in the head angle, seat tube angle and reach...
@@tamasvarga67 That’s what I thought, but I think Blake said he would ride the bike in the same setting on both wheel sizes.
prusak26 He might rode it in the same settings but it wasn’t the same when they measured it :)
I've read elsewhere that it changes it 4mm so I presume he just got words muddled
The bottom bracket drop wouldn’t have been affected at all. It’s measured as a drop in the centreline between the two axles.
Great vid Blake
Mullet bikes FTW! I did this on my Guerrilla Gravity Megatrail and haven't looked back! It's cool to see the timed test. Cheers!
^^^THIS GUY. Total shedder and the main reason GG and mullets are completely on my radar now. Yew!
Added the 29er front end setup to my Marin Rift Zone 27.5...handles awesome...great pedal clearance..great trail bike
You guys are the very best, top class, number one - period 🚀🚀🚀
The Vittoria "Mota", gotta love it.
How did you make the change in geometry numbers? Hey don’t look right to me. Specifically the BB drop.
And now use a cane creek angleset and offset bushings to make the 29“ have the same geo as the mullet version, to get comparable results. Still loved the video :)
So even just starting this video, the whole point of a mullet bike is the short rear chainstay and higher travel.
Aside from the lower polar of movement of a 27.5 I don't think this geo is being fully utilized
Watching this video has given me an idea, Iam thinking of getting a 27.5 fork and front wheel for my 26er.
The credit of glittering hair!
I understand you need to meet a video format, however, this kind of test should be done with at least 10 rounds (alternating) per setup. Blake is a mega pro (I know) but the second round you always will go faster. Anyway the mullet angle has tons of benefits.
Ps: love your videos, just a friendly comment from a fan.
Totally agree. That test is anything but scientific. Also in the beginning he mentioned the shorter chainstay but using a 29er doesn't give you that advantage. Either put a 29er fork in a 27,5" bike or test a bike made for both wheel sizes
i would say the second round you would be tired and slower
@@mikieson or loose and warmed up, it's a professional on a 5 minute ride
Maybe it was 2004 when Sherwood Gibson shows his very first Mullet 29" with 26" wheels, It was a dream of vermillion bike! I remember using that photo as background on my PC. For 5 years i've been enjoying my Turner 5 Spots with 27,5 in the front and 26" rear, not that radical as the Ventana, but I wouldn't change it at all. I LOVE MY FRICKING BIKE!!
So good! Maybe confident of 64* rather than the smaller wheel?!
Can't wait for this year's Mega, to see Blake wearing his mullet in the race?!
"my mouth's cold!.... Does that ever happen Blake???😂
So how can mullet bb be 4cm lower than on 29" when overall diameter difference between 29" and 27.5" is only 3.5cm = rear axle is 1.75cm lower on 27,5.. no way that BB is 4cm lower. That doesnt make any sense.
I agree 1/2 of 3.5cm is 1.75 lower which should be correct
@@waltersparks5271 rear axle is 1.75 lower. So the bb would be even less low than that because it's further forward relative to the line intersecting both axles.
@@BardLeSnee l agree you are right I forgot about difference between front and rear axles . I did some math but since there is a difference between the lengths from bb to rear and front axles it comes to about 1.55 mm
it was bad on the ups because you used a 29er as a base. the sweet spot for mullet is 27.5 base with a 20mm difference in travel front to rear so the geo stays pretty much the same, so 140mm rear 160mm front 27.5 bike => 140mm rear 140mm front 79er
Alexandru cel Bun think about it, this is not right. If you want to do it right you have to consider the other 20mm of the wheel on the ground. In summary 40mm.
@@tayfunatwork if you want to keep as close to the intended geometry of the original bike you must subtract the difference of the bigger wheel from the travel of the fork. and yes the difference is 38mm between wheels, the rest you can take from the spacers under the stem (if you have any). there is no exact conversion, just the "nearest conversion" :)
What about on a hard tail?
I have a 27.5 carbon hardtail but i run a 26” easton xtr wheel on the rear with a easton ar24 27.5 up front and its a dream
I have a mullet spez enduro 2017 29/6fattie, it kinda has a short wheelbase but i run 27.5 2.6 dhr rear and a 29 2.6 assegai on the front, i love it, doesnt really suffer on the climbs but on the steep and loose and wet terrain here in my local trail, its grippy and it corners fast
it would've been nice to see a rider outline of how body/riding position changes due to the new geometry of the bike mullet bike compared to the standard 29". Maybe a future add on to geometry videos?
Mullet bike with 29'' with 26''?
A M I ride with that set up what I can say is that it’s very hard on the climbs but descent are very fast and you feel really confident going over rocks, roots and hitting jumps and drops
That existed a few years ago. That was the Trek 69er
I've been riding a 26" hard tail with 29 forks & front wheel for years.
The only compromise I noticed was a slight loss of lateral stability at slow speeds -probably due to lifting the bottom bracket.
Other than that, it was a total no-brainer. Big grins all round.
I've read that, all thing being equal (and they're often not designed equally), a 26'er is TWICE as strong as a 29'er!
exclusively as a chairlift rig, sure!
I love Blake so much
Keep up the great video guys
I think tests like this are quite interesting but to get a proper comparison of any back to back test, then a number of runs need to be done so that an average can be worked out as there are just so many variables involved.
I just realized how much Blake like to use the phrase "Dramatic Change" .... LOL
I'm glad you talked about climbing in the end there, I was keen on one until you said that because unfortunately there aren't a lot of lifted trails around here
Numbers dont add up 3.5cm drop in tyre radius yet have a 4cm bottom bracket drop ?? Think another run with the flip chip in the higher position in mullet would have been a closer comparison and maybe a hill climb test as well. Better vid otherwise compared to Neil's a while back .😄
Agree. The bb drop doesnt make sense.
Interesting concept!
The biker mullet reminded the crazy one of the video clip of the band Blink 182 "First date" 😂😂😂😂😂👏🏻👏🏻👏🏻
Just got a retro Gt hardtail and thinking of running that 27.5 front 26 rear its only for some fun so might try it once its built
How do I get one of those front mudguards because it isn’t on the store
Great video. Perhaps if you could pick up a bike designed for the Mullet wheel setup? Maybe a Foes Mixer? That way your geometry is not all wonky.
The issue I have wiith tests like these, is you're doing one run, then another, so you're more familiar the second time around (but I assume you've ridden these trails before). A better test would be doing maybe 3 runs on each wheel size and taking the averages.
+100 to this. Better yet, have other riders do the same test. This would actually be a good crowdsourcing problem. Get 100 riders to do it. Each time flip a coin to determine which config to ride first.
I rocked a reverse mullet in 78'. A purple Raleigh Chopper Mk2.
As a 10yo I fitted BMX forx and blue Dale Industries mags... As a 10yo I discovered triangulation... or lack of it... leads to weak design. And gussets helped prevent frame cracking... and pedals with c-clips to retain them were good for ripping the instep of your bata bullets (kiwi shoes of the day) and didn't do much better for the instep of your feet.
And i learned the word "Gudgeon"... Luckilly my dad was a "This is MY GARAGE....... try not to brake anything.." q8D
Way back when I was racing downhill in 2000-2008 I was running a 26" front and 24" rear. The biggest downside was the fact there were very few good 24" rims. I ended up with dice 26 and dice 24 rims. They weren't as strong as demax but at 1/4 of the price it didn't matter. They buckled badly but they could end up like a 50 cent coin (Australian).
How much of the time difference could be down to already having ridden the trails once? I wonder if the mullett had gone first if the 29er would of come out quicker?
Specialized did it in 03, big hit comp. I loved that bike.
The editing is absolutely WHAAAAAA
Never get tired of watching Blake shred. Also mullet Blake FTW
Great video....this is really making me want to go smash dai hard at BPW, ain't been there in ages
Great piece of trail that!
I have a 27.5 DH bike, SC v10 cc... How about using 29" in front? Wud still make a diff?
Yes mullet bikes are the way to go! 😍👍
I recommend an 18" in the rear and 55" or 56" in the front for optimum effect 🤘💪
Penny farthing is the ultimate mullet bike😂
Reject modernity
R E T V R N to Penny Farthing
Penny farthing is the ultimate in modernity 🤗
No. A 128”/20” penny farthing!
Waiting for my starling twist to arrive 😬😬🤟🤟
I have a 90's rigid Specialized Rockhopper. Could there be a 27.5 wheel/fork that would fit that headtube?
3:02 nice!
I put a 29er wheel and fork on my 27.5 DH bike and the headangle only slackend 0.5° not 2°
So that maybe explains why most people convert a 27.5 bike to mullet
If a 27.5 owner had a fork that took BOTH 29" & 27.5+ they'd be sittin' in tall cotton? This could change my geometry just enough to take me from AM to Enduro specs.
Aren’t 29 forks only 190mm not 200? That might have been the reason for less of a change then expected.
@@kyleslater5245 yeah you can get them in 180 or 190 too, but I still have 200mm. Same fork just 29 lowers
Okay good to know. I’m still a ways off from that yet but who knows what the future holds
Look at my comments below. It explains the numbers correctly. And as you have found, it drops your head angle by just over half a degree
The internet needs more mullet Blake!
How can i adjust my geometry to allow for this? I thought offset bushing but i have a trunnion mount and i thought about the cane creek angleset but i have a reach adjust headset
Is a good idea to do un one bike wich is 27.5" use suspension and tire 29" ? specifically trek remedy 9.7 / 27.5 ?
I have a vitus nucleus 29 vr. If I would put 27,5 front and rear and increase my travel by 30 or 40 mm, wouldn’t I basically have a mullet bike with more travel?
Hello Blake, what do you think about Intense Tazer MX Expert as a beginner bike?
Could you guys do a tire video on Vitoria?
i lost it over that gold extensions of mr. mullet blake
Great video thanks. 1- Worth it on a hardtail too? 2-Would it be different with a 29 front wheel on a 27.5 bike?
I'm currently riding mine with 29x2.4 in the front and 27.5x2.8 in the rear. It's feels really nice. Just go for 650b+ in the rear. It cushions really well and does, what it's supposed to do. Also its more forgiving when you come up short on gaps and hit roots really hard.
Blake I recent put a 29front wheel with a 160 fork on my firebird 27.5 feels faster and don't suffer poor climbing
I was thinking about doing this to my knolly warden 27.5 instead of buying a new bike... Should I do it?
I'm currently putting together a 27.5'' bike with a boost hub fork on the front which can take a 2.8'' plus tyre. It can also take a 29'' wheel with a smaller tyre so I heard, so it's basically the same effect. Although a 27.5'' rear on a 29'' frame will have a slightly different effect than a 29'' front on a 27.5'' frame, the former would lower the BB and the latter would raise it, maybe it will make it less stable and controllable, we'll see.
I did the same experiment a few months ago. It is good. More DHish because it is slacker, stack height is higher in relation to BB (again more DHish), tighter turning, and less tire butt buzz. The not so good is climbing is tougher and BB is lower (more pedal strikes).
Great video and comparison !!! You've talked about 29 against mullet bike, but what about 27.5 against mullet bike ?
27.5 vs mullet vs 29
also can you put 29" fork&wheel on a 27.5" frame to make a mullet bike?
Matthew Hodges 29” frame and fork.27.5” wheels
Yes you can
I plan to do this with my old 26in marin bobcat and install a 27.5 in fork/wheel
Can I put a 29" front on my 27.5" DH bike? is it the same way around than putting a 27.5" on a 29er?
what about comparing a 27,5 bike to a mullet?
You wheely did it this time!
#askgmbn hi guys when I compress my shock there is a small clunk/give from it at the start of the travel. It’s a fairly new 2018 RockShox monarch plus. Any ideas what’s wrong ?
Wow - I just installed installed a 29 fr on my 27.5+ this evening. Going to the mullet has several advantages: 1) raise BB 2) slacker geo 3) lighter tire/wheels. We'll see how it goes tomorrow am.
I went mullet on my 27.5+ as well but put a 2.6 tyre on the rear, that way the bottom bracket height remains in the same position and therefore helps with stability
@@michaelstewart9308 That's a good point - mix and match tire sizes to keep an optimum BB height. I was plagued with pedal strikes on my 6fattie. Happy to report that the mullet config was a significant improvement. (29 2.6 fr and 27.5 3.0 rear)
May have bee. said before but surely the doing the second run when you’re more familiar with the conditions and obstacles means you are confident to go faster?
The math is a bit off :) The aggregated difference in 3 segments was 7 seconds, but the total difference was just 4?
I was also wondering - that didnt add up. Should have been 4:30 for the mullet I guess.
What model of Gore trousers was Blake wearing?
Is there a front fork that can take a 148mm boost back wheel? I live near a mountaion and i own a boost bikew. i want to ride with both back wheels 27.5 and 29. and swap them front and back between climbing and downhill.