|   Anybody got experience with the Extralite F2 frame? | Anders
Jan 27, 2003 2:10 AM | | It should be just 2095 in a large size and in the anodized finish. Has anybiody rtidden this or the F1 model. Is it a BOB machine or what? |
| Looks like a great design except for the fact that it doesnt use | JIT
Jan 27, 2003 7:41 AM | | bearings in the pivots as far as I can tell. Thats one way they got it so light I think. |
| That's not necessarily bad, though. | ®i© Wi©to®
Jan 27, 2003 8:49 AM | | A lot of frames past and present use bushing rather than bearings. I think you only run into trouble if with many of these designs if you're over 80 kgs.
What I remember of the F2...I can't remember anything negative about stiffness. It has a bit more travel than the F1 which feels like a soft-tail, and has some of the same weird finishings, like a tiny coil shock. Also, it lacks a replacable derailleur hanger. Since we all replace our derailleur bolts with alloy ones, I don't think that's too bad, though. |
| Bushings handle loads better and create stiffer.... | Shylock
Jan 27, 2003 2:27 PM | | pivot junctions. It's why Turner won't do the cartridge bearing thing, and sticks with Bushings on his Xc bikes. The only bearing setup ventana recommends wholeheartedly for all-around durability and stiffness is their double-bearing option. Otherwise, Sherwood thinks his single-bearing equipped bikes are whimpier than his old bushing bikes, all things being equal. So, the botoom line is, rider weight isn't really an issue for bushings and is more likely an issue for cartridge bearings.
that said, I love having bearings on my ventana simply because I don't have to maintain them. But I'll never knock (or avoid buying) a bike with bushings -- especially when it comes to saving weight.
feel the gin |
| Interesting. It seems that bushings wear quickly and make noise. | JIT
Jan 27, 2003 3:07 PM | | They also have much more drag. Ive never had any problems with bearings. |
| Drag? Think of it as extra two-way damping! (NM) | ®i© Wi©to®
Jan 27, 2003 11:23 PM | | |
| turner bushings | aosty
Jan 27, 2003 5:11 PM | | Unlike most bushing pivot frames, the Turner bushings are quite durable because they have grease ports and channels. A zap or two with a grease gun pushes out moisture and gunk and keeps the bushing properly lubricated. Also, greater attention to the alignment of the frame/pivots/linkages will also reduce uneven bushing wear. |
| People think bearings are better because they feel smoother... | DeeEight
Jan 28, 2003 7:23 AM | | to turn, and that the suspension reacts faster to bumps. As for how
long they last, well, depends on the quality and how well they're sealed.
The bushings on my Manitou FS-DH frame (which is 7 years old) may squeak
a lot but they haven't worn out yet to any play in the back end being
noticeable. I doubt cartridge bearings would have lasted that long as
bikes with cartridge bearings RARELY employ any extra seals. |
| how much weight..... | VT Mike
Jan 27, 2003 8:54 AM | | do you think bearings add over bushings? I'm guessing maybe 120g. I just bought a Rocky Mountain Element Team SC frame, which also uses bushings. I'm hoping I don't have to replace them more than once every two years (too much snow to ride here about 5 months per year). I also considered the Extralite F2, but the lack of dealers in the US and that I couldn't find any reveiws of the bike made me decide against it. I'm expecting the Element to be under 2300g, but it is getting shipped all the way across the country, so I won't have it for at least a week. I'll post pics and the weight as soon as it gets here. |
| Depends on the bike. Something like an Element or the Extralite | JIT
Jan 27, 2003 9:00 AM | | has 4 sets of pivots where something like the Scott or SC Superlight have only one set. Ive never weighed a bearing set but I would guess for a four bar link probably between 100-200 grams roughly.
I dont miss my old bikes with bushings. |
| Search the archives in here, about a year or so ago. | DeeEight
Jan 28, 2003 7:25 AM | | There was a few threads about the F1/F2. |
| Scary seat mast junction... | D.F.L.
Jan 28, 2003 11:58 PM | | Just doesn't look like it has enough reinforcement to last long. Note how other interrupted designs use considerable gusseting/ manipulated tubes to strengthen the seat junction. Must be a reason...
Scrawny looking chainstays, too. |
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