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Hybrid Leftys aren't real
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Discussion Starter · #1 ·
I have a customer who would like to get into a Super Moto for trail riding/light freeride. I rode one in Vegas this Fall, and I think it would fit his needs great. My question to those who have used it in the real world is this. He is 6'4", and weighs 300 lbs, yeah, he's a big guy, think linebacker, not fat slob. Any thoughts? Is this bike whimpering in the corner, or begging for more? Thanks for any insight you might have.
 

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MendonCycleSmith said:
I have a customer who would like to get into a Super Moto for trail riding/light freeride. I rode one in Vegas this Fall, and I think it would fit his needs great. My question to those who have used it in the real world is this. He is 6'4", and weighs 300 lbs, yeah, he's a big guy, think linebacker, not fat slob. Any thoughts? Is this bike whimpering in the corner, or begging for more? Thanks for any insight you might have.
It is perfect for a clyde. I'm 6'3" & 225 but the SM will handle the extra pounds just fine. I'm using an XL with the Manitou 4-way coil over (500# spring). If he's strong as well as heavy then you'll need to select beefer parts than I used. I lost the strong a few years back when I stopped riding 3 times a week and became a happy weekend warrior.
 

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TrailDude said:
It is perfect for a clyde. I'm 6'3" & 225 but the SM will handle the extra pounds just fine. I'm using an XL with the Manitou 4-way coil over (500# spring). If he's strong as well as heavy then you'll need to select beefer parts than I used. I lost the strong a few years back when I stopped riding 3 times a week and became a happy weekend warrior.
SM with coil over shock ought to do the trick. I once saw a guy riding an XL Stumpjumper FSR and he was 6'6" and something like 250-260#. Now, I don't know how long the frame held up either.
 

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leverage ratio

zorg said:
SM with coil over shock ought to do the trick. I once saw a guy riding an XL Stumpjumper FSR and he was 6'6" and something like 250-260#. Now, I don't know how long the frame held up either.
The first thing is the leverage ratio on the rear shock. This will eliminate a bunch of bikes. You got to compare the shock stroke vs the suspension travel. You are going to want to get him a bike that has closer to 2 to 1 leverage ratio. This would include any 4-inch bike with a 2 inch stroke shock. But would eliminate any 6 inch travel bikes with a 2 inch stroke shock. That would be a 3 to 1. and you would need a huge spring to get the proper sag.

If I was 300 pounds and I wanted a 6 inch bike, I'd get a supermoto with the 7 inch coil free ride option, but run it in the 6 inch travel mode. This shock package has a 2.75 inch stroke shock. And when run in 6 inch mode yields a 2.18 to 1 ratio.

If I wanted a smaller travel bike, I'd go with a ventana salty or their 29er.
"Low compression ratio suspension geometry yields 4" rear travel using a 2" stroke rear shock"
 

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I am 6' 3" and 265 I have a large SM running 6" with an 4 way air and a down hill back
end, what a fantastic bike, I would recommend this for a Clyd. no problem.
 

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Hybrid Leftys aren't real
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Discussion Starter · #6 ·
Great info!

Thanks all, I appreciate the input, and will incorporate it into his decision process. He's pretty pumped, and I think it will work well for him. Talking with Titus, they seem confident that the DHX it comes with will be great, even at his weight. I am the only dealer in a large area (and new to Titus). He's about 1.5 hours from me, so we want to make sure he's not running back here with issues every other week! Any experiences to the contrary on the DHX? He would prefer it to a coil if it will do the job. The DH rear end, you mean a linkage kit, or a whole different rear end? I'm only aware of linkage kits. Thanks again!!
 

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MendonCycleSmith said:
Thanks all, I appreciate the input, and will incorporate it into his decision process. He's pretty pumped, and I think it will work well for him. Talking with Titus, they seem confident that the DHX it comes with will be great, even at his weight. I am the only dealer in a large area (and new to Titus). He's about 1.5 hours from me, so we want to make sure he's not running back here with issues every other week! Any experiences to the contrary on the DHX? He would prefer it to a coil if it will do the job. The DH rear end, you mean a linkage kit, or a whole different rear end? I'm only aware of linkage kits. Thanks again!!
which linkage kit? there is like 4 that use a "DHX" , I guess you are talking about the DHX air? which means that you are talking about the higher leverage ratio links. thats a poor choice.
 

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Discussion Starter · #8 ·
demo_slug said:
which linkage kit? there is like 4 that use a "DHX" , I guess you are talking about the DHX air? which means that you are talking about the higher leverage ratio links. thats a poor choice.
qazwsx referred to a "downhill back end", I was unsure what they were referring to. I did mean DHX Air. You feel that the Air shock linkages get away from the 2:1 that is your preferred suggestion? Thanks, I appreciate your thoughts!
 

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MendonCycleSmith said:
qazwsx referred to a "downhill back end", I was unsure what they were referring to. I did mean DHX Air. You feel that the Air shock linkages get away from the 2:1 that is your preferred suggestion? Thanks, I appreciate your thoughts!
The linkage were the shock mounts to is set up at 6" the rest of the rear suspestion is off a SM down hill bike,I guess it is heavy duty and you can run a bigger rear tire.I odererd a
DHX coil but Tidus recommended a manutou 4 way air , I have had the bike for about a year now and have had no problem at all with the air shock. :D
 

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MendonCycleSmith said:
qazwsx referred to a "downhill back end", I was unsure what they were referring to. I did mean DHX Air. You feel that the Air shock linkages get away from the 2:1 that is your preferred suggestion? Thanks, I appreciate your thoughts!
yes,if you are heavy, then the lower the ratio the better off you are going to be. for an air shock it is very important. if you have a high ratio, you are going to need to pump the shock up to a higher PSI. a very high PSI. the more air that you stuff into the shock the more its going to ramp at the end of the stroke. also with high ratio the SPV is not going to work. I had to send my RP3 off my motolite to push to get the platform to work for me.

I and others recomend the 7 inch Free ride inkage. which can be set to 6 inch to get an even lower ratio. this linkage uses a 8.75 i2i shock with a 2.75inch stroke. which is a huge shock. its also very heavy. fox did not make a DHX air in that size. the only air shock you can use with that linkage is a swinger 4 way air. maybe that has changed this month?

So, when you say DHX air, I suspect that you are talking about a different linkage. so ask titus what the stroke is of that DHX air is.
 

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Discussion Starter · #11 ·
demo_slug said:
yes,if you are heavy, then the lower the ratio the better off you are going to be. for an air shock it is very important. if you have a high ratio, you are going to need to pump the shock up to a higher PSI. a very high PSI. the more air that you stuff into the shock the more its going to ramp at the end of the stroke. also with high ratio the SPV is not going to work. I had to send my RP3 off my motolite to push to get the platform to work for me.

This, I understand. I deal with Cannondales quite a bit, and the Prophet is a classic case of ratios playing an all importatnt role in SPV performance.

I and others recomend the 7 inch Free ride inkage. which can be set to 6 inch to get an even lower ratio. this linkage uses a 8.75 i2i shock with a 2.75inch stroke. which is a huge shock. its also very heavy. fox did not make a DHX air in that size. the only air shock you can use with that linkage is a swinger 4 way air. maybe that has changed this month?

I just spoke with Titus, and the 7"FR is what comes on the bike this year (an option in the past?) Also it does come stock, with a DHX air, in the 8.75/2.75 configuration. According to Jeff, it's new this year, and is built specifically for the bike, he also seemed confident that it would work for a 300 pounder. Any thoughts? Sounds like I'm on the right track, near as I can tell. Thanks again for all the input!
 

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MendonCycleSmith said:
I just spoke with Titus, and the 7"FR is what comes on the bike this year (an option in the past?) Also it does come stock, with a DHX air, in the 8.75/2.75 configuration. According to Jeff, it's new this year, and is built specifically for the bike, he also seemed confident that it would work for a 300 pounder. Any thoughts? Sounds like I'm on the right track, near as I can tell. Thanks again for all the input!
A 2.55 leverage ratio! That sounds pretty nice. I have zero experience with the DHX air, but I have a Motolite with an RP3. On the small motolite, the ratio is 3.33 and for my 170# riding weight, I need about 195psi. On larger Motolite, the ratio is 2.5 and guys put pressures that are a little less than their weight. So if your guy is 300#, he'll probably end up putting anywhere from 240 to 270psi in his shock, which is still pretty close to the max 300psi (I assume it's the same max pressure as the RP3). Food for thought.

I don't know all the linkages on the SM, but what about getting a 6" link with the 8.75/2.75 shock and putting a Pike fork to compensate?
 

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Hybrid Leftys aren't real
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Discussion Starter · #14 ·
demo_slug said:
Mendon,
You are on the right track. But I would strongly recommend a coil shock. It will be more reliable. and 1 more extra pound should not be a problem for a 300lb rider.

There is more then a few posts on MTBR about the DHX air needing higher air pressure then an RP3 on the same frame. YMMV.

http://forums.mtbr.com/showthread.php?t=149814.
Both you, and Zorg are leading me to think I should go for the coil, yeah, what' s a pound when your'e 300? As far as the Pike, He really likes the Fox, and I cannot argue that with him=:) Thanks again for all your help, I feel far better getting this guy set up now!
 

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MendonCycleSmith said:
Both you, and Zorg are leading me to think I should go for the coil, yeah, what' s a pound when your'e 300? As far as the Pike, He really likes the Fox, and I cannot argue that with him=:) Thanks again for all your help, I feel far better getting this guy set up now!
Exactly, and you can always sell your guy a titanium spring for another $200 and save some grams. :)
 

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MendonCycleSmith said:
Now you're thinking! Thanks again
You're welcome. BTW, we're expecting a full report on the bike with pics once it's built!!
 
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