|
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
Giant Revive directional stability problem
I have no idea if a Revive is a recumbent but I see a few older posts
here from Revive owners so here goes. My wife and I recently bought one for use as a "errand" bike and to get a bit of exercise. We gave up on our old "triangle" bikes long ago as age and arthritis crept in. The bike is super comfortable and we are enjoying it a lot except for one thing; it does not like to go in a straight line. Every bike we have ever had simply goes straight ahead until the rider steers/leans to change direction. The Revive has to be "steered" constantly which results in slight zigs and zags. This is not a big problem on bike paths or mostly-empty residential streets, but on main roads with traffic zipping by it is quite unnerving and makes car drivers nervous too resulting in comments about "sobering up before riding". Has anyone else been bothered by this? Is it typical of recumbents (or semi-recumbents)? My assumption is that it must be something to do with steering geometry. Your input/suggestions would be appreciated. |
Ads |
#2
|
|||
|
|||
"wobbler" wrote in message oups.com... I have no idea if a Revive is a recumbent but I see a few older posts here from Revive owners so here goes. My wife and I recently bought one for use as a "errand" bike and to get a bit of exercise. We gave up on our old "triangle" bikes long ago as age and arthritis crept in. The bike is super comfortable and we are enjoying it a lot except for one thing; it does not like to go in a straight line. Every bike we have ever had simply goes straight ahead until the rider steers/leans to change direction. The Revive has to be "steered" constantly which results in slight zigs and zags. This is not a big problem on bike paths or mostly-empty residential streets, but on main roads with traffic zipping by it is quite unnerving and makes car drivers nervous too resulting in comments about "sobering up before riding". Has anyone else been bothered by this? Is it typical of recumbents (or semi-recumbents)? My assumption is that it must be something to do with steering geometry. Your input/suggestions would be appreciated. Might I ask what the age of the riders are? As far as I know the Revive steers fine |
#3
|
|||
|
|||
wobbler wrote: I have no idea if a Revive is a recumbent but I see a few older posts here from Revive owners so here goes. My wife and I recently bought one for use as a "errand" bike and to get a bit of exercise. We gave up on our old "triangle" bikes long ago as age and arthritis crept in. The bike is super comfortable and we are enjoying it a lot except for one thing; it does not like to go in a straight line. This is typical of newer recumbent riders switching from upright bikes. You're trying to push through the pedals by pulling on the handlebar. On a recumbent/semi-recumbent this is unnecessary. Try consciously relaxing your arms and shoulders. Some people drape their fingers over the tops of the brake levers, others rest their wrists on the handlebars, others ride while making the "OK" sign around the grips. The point is to *not* steer the bike- it'll go in a straight line just fine without your input. It'll require pressure to point it where you want to go- but less than you're used to. Jeff |
#4
|
|||
|
|||
I recently bought a Revive for my wife, and she complains of the same
problem. When I ride it (I am far more experienced at riding than she, and switch between recumbnt and DF bikes often) I have no trouble going straight. It is a little less stable when starting up, and THAT is due to the longish wheelbase and the fork rake. The main thing, which I have told me wife and hasn't sunk in yet, is to quit pulling on the steering while you pedal and let your legs do ALL the work. Push your butt into the back support on the seat and the bike willl steer straight as an arrow. |
#5
|
|||
|
|||
Could be a "time in the saddle" thing
but you might as well check the steering bearings they should have a smooth movement if they feel notchy or have tight spots then they will need maintenance Speedy wobbler wrote: I have no idea if a Revive is a recumbent but I see a few older posts here from Revive owners so here goes. My wife and I recently bought one for use as a "errand" bike and to get a bit of exercise. We gave up on our old "triangle" bikes long ago as age and arthritis crept in. The bike is super comfortable and we are enjoying it a lot except for one thing; it does not like to go in a straight line. Every bike we have ever had simply goes straight ahead until the rider steers/leans to change direction. The Revive has to be "steered" constantly which results in slight zigs and zags. This is not a big problem on bike paths or mostly-empty residential streets, but on main roads with traffic zipping by it is quite unnerving and makes car drivers nervous too resulting in comments about "sobering up before riding". Has anyone else been bothered by this? Is it typical of recumbents (or semi-recumbents)? My assumption is that it must be something to do with steering geometry. Your input/suggestions would be appreciated. ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
#6
|
|||
|
|||
wobbler wrote:
I have no idea if a Revive is a recumbent but I see a few older posts here from Revive owners so here goes. My wife and I recently bought one for use as a "errand" bike and to get a bit of exercise. We gave up on our old "triangle" bikes long ago as age and arthritis crept in. The bike is super comfortable and we are enjoying it a lot except for one thing; it does not like to go in a straight line. Every bike we have ever had simply goes straight ahead until the rider steers/leans to change direction. The Revive has to be "steered" constantly which results in slight zigs and zags. This is not a big problem on bike paths or mostly-empty residential streets, but on main roads with traffic zipping by it is quite unnerving and makes car drivers nervous too resulting in comments about "sobering up before riding". Has anyone else been bothered by this? Is it typical of recumbents (or semi-recumbents)? My assumption is that it must be something to do with steering geometry. Your input/suggestions would be appreciated. I have one bent and have test-ridden a few more from three different companies--I think that little front wheels just aren't that stable. Some people have told me that some bents are better than others, but I don't see much big differences in steering geometry, so I really doubt that. I have not yet found (for instance) a bent that could really be ridden as easily "hands off", as any typical upright bike can. ....Maybe try getting a cheaper CLWB and put a big front wheel on it (26"), or try the Rans crank-forward bikes--not real bents but people who are riding them say for comfort they are a big improvement over upright bikes. |
#7
|
|||
|
|||
wobbler wrote:
I have no idea if a Revive is a recumbent but I see a few older posts here from Revive owners so here goes. My wife and I recently bought one for use as a "errand" bike and to get a bit of exercise. We gave up on our old "triangle" bikes long ago as age and arthritis crept in. The bike is super comfortable and we are enjoying it a lot except for one thing; it does not like to go in a straight line. Every bike we have ever had simply goes straight ahead until the rider steers/leans to change direction. The Revive has to be "steered" constantly which results in slight zigs and zags. This is not a big problem on bike paths or mostly-empty residential streets, but on main roads with traffic zipping by it is quite unnerving and makes car drivers nervous too resulting in comments about "sobering up before riding". Has anyone else been bothered by this? Is it typical of recumbents (or semi-recumbents)? My assumption is that it must be something to do with steering geometry. Your input/suggestions would be appreciated. yes, yes, and you are right. I have been riding a recumbent for about 10 years. a long wheel base infinity and now a short wheel base Vision. I absolutely cannot ride with no hands on a recumbent. I have to keep a hand on the handlebar at all times. On the long wheel base, the front end was not loaded, most weight was on rear wheel, and if going around a curve at any appreciable speed, and the road was wet, or gravel/sand, the front end would slip, the bike would tip, and I would be skidding down the road on my butt. Since the distance was only a foot, not really a major crash. The Short wheel base, the front wheel is about 8 inches in front of the seat, so that problem is solved. It is more bouncy though. I have riden the hotter than hell hundred about 14-15 times, since '96 on a recumbent. It is much, much, more enjoyable, and slightly slower. The fastest time on a wedgie was 6 hours and 45 min (1994), the fastest time on a recumbent was 6 hours and 54 min (2004). The short wheel base is significantly faster than the long wheel base. Since it is difficult to change the geometry, to increase the rake or whatever, I have thought about increasing stabilty by increasing the angular momentum on front wheel. Ie increase the wt of the rotating elements, put a heavier tire, tube and putting stop leak in the tube etc. But never did it. btw, when I got the infinity, it took me about 5 minutes to get out of the driveway. j. |
#8
|
|||
|
|||
"Into the living sea of waking dreams"
wobbler wrote: I have no idea if a Revive is a recumbent but I see a few older posts here from Revive owners so here goes. My wife and I recently bought one [...] The Revive has to be "steered" constantly which results in slight zigs and zags. Steering stability may improve with rider experience. A light touch on the handle bars may help. I absolutely cannot ride with no hands on a recumbent. I have to keep a hand on the handlebar at all times. Likewise. However, above stall speed, I can hold a straight line course pretty well on all three of my recumbents with minimal steering input. I have riden the hotter than hell hundred about 14-15 times, since '96 on a recumbent. It is much, much, more enjoyable, and slightly slower. You and 8,000 to 10,000 of your closest friends? %^) I rode the 100K route at HnH on my Tour Easy in '02. Not a problem. Of course, I'd ridden that same distance and further on my BikeE! %^P btw, when I got the infinity, it took me about 5 minutes to get out of the driveway. I didn't have such difficulty with any of mine, but it did take some time to get a feel for the steering and the amount of steering input needed to avoid over correction and hold a good line. A relaxed grip helped me get over Bobcat Pass (9700 ft?) in New Mexico last year riding my Tour Easy loaded for self-supported camping at just above stall speed. The CLWB BikeE is the most maneuverable and requires the "lightest touch" for steering input. It's stall speed is actually quite low (higher and more upright seating?). My Volae Sport has taken getting used to, but the steering hasn't been a problem, even from the first ride. Stable, if not hands free at fairly low speeds. Heel strike at low-speed turns, I'm adjusting to. Jon Meinecke |
#9
|
|||
|
|||
I too find the Revive distressingly unstable. Would like to be able to ride hands off occasionally but cannot. Am 6'5", so the seat is all the way back; perhaps that exacerbates the problem. Definitely am not pulling on the handlebars. Could the fork be adapted to make the bike more stable? -- ramblerdan ------------------------------------------------------------------------ ramblerdan's Profile: http://www.usenetbikes.com/member.php?userid=3349 View this thread: http://www.usenetbikes.com/showthread.php?t=299148 |
#10
|
|||
|
|||
On Wed, 13 Jul 2005 15:22:42 -0500, ramblerdan
wrote: I too find the Revive distressingly unstable. Would like to be able to ride hands off occasionally but cannot. Am 6'5", so the seat is all the way back; perhaps that exacerbates the problem. Definitely am not pulling on the handlebars. Could the fork be adapted to make the bike more stable? After my wife complained about the steering on he bike I tried it again. What I noticed was that if I kept my hands on the steering when pedaling hard, I tended to weave around, but if I put one or two fingers of each hand on the steering, the problem went away and it tracked straight. Now I can ride it with my hands on the bars and I can ride straight. It takes some mental adjusting and maybe optimizing the handle bar position - even if you don't think you're pulling on the bars, you probably are. Of course, pulling on the bars SHOULDN'T be a problem. The fork seems to have a lot of rake which will slow down the steering. It might be possible to put a fork with less rake in there, but then you might have toe clearance problems. |
|
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
"Actually you are the first person to bring up this issue" | James Annan | Techniques | 848 | April 6th 04 08:49 PM |
"Actually you are the first person to bring up this issue" | James Annan | Mountain Biking | 428 | April 4th 04 08:59 PM |
Giant spoke problem? | SaintDan | Techniques | 4 | November 5th 03 02:26 PM |
Giant Revive first impression | B. Sanders | Recumbent Biking | 7 | October 20th 03 12:00 AM |
biking problem and advice needed ( Help) | Brock Bailey | Mountain Biking | 28 | August 21st 03 06:37 PM |