Welcome, Guest. Please Login.
rbent - Recumbent Bike Enthusiasts of North Texas
Nov 18th, 2024, 5:30am
News: Want to join the rbent Forum? See this thread.
Home Help Search Login


Pages: 1 2 
Send Topic Print
Low average speed on my Fusion (Read 2837 times)
Opus the Poet
Five Star Member
*****


rbent member

Posts: 1353
Low average speed on my Fusion
Mar 22nd, 2009, 4:33pm
 
I have been bothered by low average speeds on my Fusion. I know my computer is calibrated correctly within the levels of repeatability for the course I use to check, about 0.5% so that's not the cause. I have been blaming the engine because I had so much off the bike time in the last year what with blowing up the Stratus and all.
 
Well I had some pedal problems with the pedals I installed to try to get my wife to ride the bike, some plastic ones with a not too-aggressive "cage" style. I managed to kill one of the bearings in one pedal, so I swapped to a set of alloy body pedals with the usual alloy cages with teeth. Well I have somehow managed to rip the cages right off the front of the pedals, stripping out where the retaining screws thread into the body. The cages are now hanging loose from the front and are bent to about a 45 degree angle away from the rest of the pedal.
 
Do you think that maybe the motor is not the problem with the slow average speeds? Smiley
Back to top
 
« Last Edit: Mar 22nd, 2009, 4:34pm by Opus the Poet »  

I ride my bike to ride my bike, and sometimes it takes me where I need to go.
Email WWW   IP Logged
mleuck
Five Star Member
*****


rbent member

Posts: 1105
Re: Low average speed on my Fusion
Reply #1 - Mar 22nd, 2009, 7:41pm
 
Quote from Opus the Poet on Mar 22nd, 2009, 4:33pm:
I have been bothered by low average speeds on my Fusion. I know my computer is calibrated correctly within the levels of repeatability for the course I use to check, about 0.5% so that's not the cause. I have been blaming the engine because I had so much off the bike time in the last year what with blowing up the Stratus and all.

Well I had some pedal problems with the pedals I installed to try to get my wife to ride the bike, some plastic ones with a not too-aggressive "cage" style. I managed to kill one of the bearings in one pedal, so I swapped to a set of alloy body pedals with the usual alloy cages with teeth. Well I have somehow managed to rip the cages right off the front of the pedals, stripping out where the retaining screws thread into the body. The cages are now hanging loose from the front and are bent to about a 45 degree angle away from the rest of the pedal.

Do you think that maybe the motor is not the problem with the slow average speeds? Smiley

 
What IS your average speed?
Back to top
 
 
  IP Logged
FlyingLaZBoy
Moderator
*****


'16 ICE SprintX fs,
'16 Rocket, '12 KHS
Mocha

Posts: 5803
Re: Low average speed on my Fusion
Reply #2 - Mar 22nd, 2009, 8:45pm
 
Are you saying you need new pedals?
Back to top
 
 

******************
"A hundred miles on a bike? How many
days does that take you?"

******************
Email FlyingLaZBoy   IP Logged
Opus the Poet
Five Star Member
*****


rbent member

Posts: 1353
Re: Low average speed on my Fusion
Reply #3 - Mar 23rd, 2009, 5:17pm
 
I have a set of replacement pedals from the spare parts box, my average speed has been about 11 MPH during the cold weather. Lately my average speed has climbed to 12.5 when the winds are calm and as low as 10.5 when the winds are really blowing. I'm looking at the data and I'm thinking the problem is the way I have the bike set up with my torso upright and sitting directly over the seat. Set up like this I can lean back and pull on the handlebars and put a tremendous amount of power into the pedals when climbing hills Smiley but I think the aero for this position is poor?
Back to top
 
 

I ride my bike to ride my bike, and sometimes it takes me where I need to go.
Email WWW   IP Logged
mleuck
Five Star Member
*****


rbent member

Posts: 1105
Re: Low average speed on my Fusion
Reply #4 - Mar 23rd, 2009, 5:39pm
 
Quote from Opus the Poet on Mar 23rd, 2009, 5:17pm:
I have a set of replacement pedals from the spare parts box, my average speed has been about 11 MPH during the cold weather. Lately my average speed has climbed to 12.5 when the winds are calm and as low as 10.5 when the winds are really blowing. I'm looking at the data and I'm thinking the problem is the way I have the bike set up with my torso upright and sitting directly over the seat. Set up like this I can lean back and pull on the handlebars and put a tremendous amount of power into the pedals when climbing hills Smiley but I think the aero for this position is poor?

 
Your best fix is of course to get an Optima Baron
Back to top
 
 
  IP Logged
FlyingLaZBoy
Moderator
*****


'16 ICE SprintX fs,
'16 Rocket, '12 KHS
Mocha

Posts: 5803
Re: Low average speed on my Fusion
Reply #5 - Mar 23rd, 2009, 6:01pm
 
Quote from Opus the Poet on Mar 23rd, 2009, 5:17pm:
.... I'm thinking the problem is the way I have the bike set up with my torso upright and sitting directly over the seat. Set up like this I can lean back and pull on the handlebars and put a tremendous amount of power into the pedals when climbing hills Smiley but I think the aero for this position is poor?

 
 
Yes, well, that's how the CF bikes are DESIGNED to be...  you're just missing the recline of your Stratus....
Back to top
 
 

******************
"A hundred miles on a bike? How many
days does that take you?"

******************
Email FlyingLaZBoy   IP Logged
aikigreg
Moderator
*****


recumbent ninja

Posts: 3685
Re: Low average speed on my Fusion
Reply #6 - Mar 23rd, 2009, 8:03pm
 
Hey, if you don't like it, I'll be happy to take it and give it the old stress test!   Smiley
 
I want a CF badly after riding the zenetik last summer.
Back to top
 
« Last Edit: Mar 23rd, 2009, 8:03pm by aikigreg »  

I'm in it to Schwinn it.
Email   IP Logged
Opus the Poet
Five Star Member
*****


rbent member

Posts: 1353
Re: Low average speed on my Fusion
Reply #7 - Mar 23rd, 2009, 9:20pm
 
Quote from mleuck on Mar 23rd, 2009, 5:39pm:


Your best fix is of course to get an Optima Baron

 
I suppose you have one to donate to the cause Smiley?
Back to top
 
 

I ride my bike to ride my bike, and sometimes it takes me where I need to go.
Email WWW   IP Logged
FlyingLaZBoy
Moderator
*****


'16 ICE SprintX fs,
'16 Rocket, '12 KHS
Mocha

Posts: 5803
Re: Low average speed on my Fusion
Reply #8 - Mar 24th, 2009, 7:49am
 
Quote from aikigreg on Mar 23rd, 2009, 8:03pm:
Hey, if you don't like it, I'll be happy to take it and give it the old stress test!   Smiley

I want a CF badly after riding the zenetik last summer.

 
 
Greg, the Fusion has the rider sitting pretty far back in relation to the pedals -- not sure you'd be able to stand up for hill climbing purposes -- that's why they designed the Zenetik the way they did, in comparison.
Back to top
 
 

******************
"A hundred miles on a bike? How many
days does that take you?"

******************
Email FlyingLaZBoy   IP Logged
Opus the Poet
Five Star Member
*****


rbent member

Posts: 1353
Re: Low average speed on my Fusion
Reply #9 - Mar 25th, 2009, 11:43pm
 
Right the Fusion is much more upright compared to the Zen.I'm still trying to get the seat dialed in as all I had to work with was the plastic pan, pre-carbon fiber. No cushion or cover came with the bike. I have a 10mm pad that I cut up from a different bike to kinda sorta fit the pan, but when I did a 36 mile ride around the beginning of the month it felt like I had been sitting on a cheese grater. I had managed to build up some calluses over where my tailbone grew back crooked after I wrecked a toboggan when I was in college (long story, ask me about it when we're riding). When I got home the callus was gone and I had a spot or 2 of blood in my shorts Smiley. I need to get a better cushion and a real cover over it. I went to the upholstery department at Hobby Lobby up the street and the cushions they have are all way too soft. Their idea of "high density" is a joke...
 
One thing the Fusion will do is climb like there's no tomorrow. That seating position lets my put a ton of power into the pedals Cheesy
Back to top
 
« Last Edit: Mar 25th, 2009, 11:44pm by Opus the Poet »  

I ride my bike to ride my bike, and sometimes it takes me where I need to go.
Email WWW   IP Logged
aikigreg
Moderator
*****


recumbent ninja

Posts: 3685
Re: Low average speed on my Fusion
Reply #10 - Mar 26th, 2009, 9:00am
 
Zotefoam would probably work just fine.  It's extremely dense.
Back to top
 
 

I'm in it to Schwinn it.
Email   IP Logged
Opus the Poet
Five Star Member
*****


rbent member

Posts: 1353
Re: Low average speed on my Fusion
Reply #11 - May 1st, 2009, 5:10pm
 
Seat cushion is in, still waiting on the seat cover, that cushion doesn't look very durable with the kind of power I put out trying to move me back in the seat Smiley  The pedals were the original Stratus pedals that the bike left the factory with back in 1983, and the only thing they required to make them fully functional again was to pull them apart and remove the old grease and put in nice clean grease. How about that, 26 YO pedals that are still good? And rebuildable to boot. How many modern pedals can say that (rebuildable)?
 
I'm going to be leading a series of training rides on how to do a multi-day bike trip (3 days @ ~80 miles a day, long weekend, and then 3 days back) not a tour but riding bikes as transportation to the destination. OK technically it's touring as the trip is to a camp out, but if I can keep these guys focussed on just the fact that they are riding bikes for a few hours a day rather than riding 240 miles out and back I think they can do it. Grin
Back to top
 
 

I ride my bike to ride my bike, and sometimes it takes me where I need to go.
Email WWW   IP Logged
Opus the Poet
Five Star Member
*****


rbent member

Posts: 1353
Re: Low average speed on my Fusion
Reply #12 - May 3rd, 2009, 5:25pm
 
OK the toe clips are a pain. The biggest problem I'm having with them is getting the pedals right side up to slip my foot in. They keep turning back over when I get them right side up, and are a major pain to get turned back over when that happens. On the plus side I can get my feet out on the ground as fast as flat platforms, and My average speed has jumped almost 1.5 MPH since my foot stays with the pedal better at high cadences.
Back to top
 
 

I ride my bike to ride my bike, and sometimes it takes me where I need to go.
Email WWW   IP Logged
Opus the Poet
Five Star Member
*****


rbent member

Posts: 1353
Re: Low average speed on my Fusion
Reply #13 - May 7th, 2009, 3:52pm
 
The toe clip pedals were more than a figurative pain, they actually hurt my feet and were staring to tear up my shoes, so I retapped the threads in the alloy body pedals and bought new screws and bolted the damaged cages back on the pedals, after I straightened them out. I need to get some thread locker to prevent losing the new screws, but it looks like the modified pedals will work better. And I'm working on new platforms to bolt on in place of the cages that will let me use toe clips and not have to flip the pedal over. I'll just slide my foot forward when I start pedaling and catch the toe clip Grin Won't that be cool? Smiley
Back to top
 
 

I ride my bike to ride my bike, and sometimes it takes me where I need to go.
Email WWW   IP Logged
bikerteam
Five Star Member
*****


Exceed Your
Limitations

Posts: 630
Re: Low average speed on my Fusion
Reply #14 - May 8th, 2009, 6:14am
 
Quote from Opus the Poet on Mar 25th, 2009, 11:43pm:
Right the Fusion is much more upright compared to the Zen.

 
I recently began comparing CF models as Angie would like a bike to ride light trails (ie, a 28-32mm tire).  Contrary to what I quote Opus as saying, it appears the Fusion is much more laid back than the Zenetik.  Please tell me if I'm wrong.  
 
Also, can anyone let me know if either PCF or RBM (or elsewhere) carries various CF model?
Back to top
 
 

Ray Torrey
Email   IP Logged
Pages: 1 2 
Send Topic Print