sexymike Posted April 18, 2005 Report Share Posted April 18, 2005 if you had say a 1080 wheelbase with curved forx at a 74° headangle or a set of straight forx with a 71° headangle, still with a 1080 wheel base, would you notice the difference at all? Quote Link to comment Share on other sites More sharing options...
HarshRider Posted April 18, 2005 Report Share Posted April 18, 2005 yes because the change in reach would make the reac differnt! thats if you mean if you changed the head angels but using forks so it keeps the wheel base the same! wheel base means nothing! just what you can bridge Quote Link to comment Share on other sites More sharing options...
sexymike Posted April 18, 2005 Author Report Share Posted April 18, 2005 how would the change in reach differ? if the head and angle was steeper, then it would mean using a different stem just to make bar position different what im tryin to get accors is if everything was the same bar headangle (so that everything changes to keep things the same, stem and forks) would it make a difference,? Quote Link to comment Share on other sites More sharing options...
ScotchDave Posted April 18, 2005 Report Share Posted April 18, 2005 (edited) Yes, cos the bars would be further forward. Also difference depends on where you measure from. Edited April 18, 2005 by div Quote Link to comment Share on other sites More sharing options...
Brian Bleech Posted April 18, 2005 Report Share Posted April 18, 2005 If you change the head angle of a bike and use the same bar and stem, you will feel the difference. The tighter the head angle the longer the reach will be. but if you use a differnt stem to get the same reach then no the bike won't feel different, especially on the bike wheel. A slacker head angle is better for hooks and taps, but a tigher one feel better on two wheels (IMO especially as I like quicker steerer) and is also 'better' on the front wheel! Hope that helps in some way Mike Quote Link to comment Share on other sites More sharing options...
HarshRider Posted April 18, 2005 Report Share Posted April 18, 2005 how would the change in reach differ? if the head and angle was steeper, then it would mean using a different stem just to make bar position different what im tryin to get accors is if everything was the same bar headangle (so that everything changes to keep things the same, stem and forks) would it make a difference,? ← ah i see! meaning that everything was still esactly the same incountering for stem length, fork! i see well there would be slight differences like leedstrials said! it wouldn't change any thing directly on the rear wheel! but it would how so on with the front wheel! as in with the longer rake forks should make steering feel alot more.....cant think of word! more to turn :huh: also other minor things like weight of the bike in different places! like longer forks to equal out the wheel base maybe be heavier then shorter raked ones. meaning in less weight saved when using a shorter stem to acompish the same reach. so very very minor things but all parts witch would change it slightly! mainly front wheel stuff! Also for the street boys who do the x ups! with the longer raked forks may increase chances of hitting their foot :P I dont think that made sense! :P Rich Quote Link to comment Share on other sites More sharing options...
Ali C Posted April 18, 2005 Report Share Posted April 18, 2005 primarily it would feel the same, untill you turned. Quote Link to comment Share on other sites More sharing options...
HarshRider Posted April 18, 2005 Report Share Posted April 18, 2005 primarily it would feel the same, untill you turned. ← thats the one :huh: Quote Link to comment Share on other sites More sharing options...
tank_rider Posted April 18, 2005 Report Share Posted April 18, 2005 to illustrate the whole reach vs wheelbase thing, a base and a t-rex have the same distance between the bb and the top of the headtube, while one is more laid out flat than the other, the distances are still the same, however the wheelbases differ by around 40mm due to the base having a steep headangle and the t-rex having a slacker head angle. Quote Link to comment Share on other sites More sharing options...
sexymike Posted April 18, 2005 Author Report Share Posted April 18, 2005 primarily it would feel the same, untill you turned. ← ahh ok i see yes thats what i was thinkin, but i didnt know a bmxer once said to me, why does trials bike has bent forks, why not make the headangle slacker and have straight forks, i couldnt come up with an answer thanx to u all ne whos sexy Quote Link to comment Share on other sites More sharing options...
Tomm Posted April 19, 2005 Report Share Posted April 19, 2005 ahh ok i see yes thats what i was thinkin, but i didnt know a bmxer once said to me, why does trials bike has bent forks, why not make the headangle slacker and have straight forks, i couldnt come up with an answer thanx to u all ne whos sexy ← But straight forks still have rake. I guess curved forks are designed like that for a reasons, maybe it's better for having a disc? Anyway, the head angle makes loads of difference when you're on the front wheel/tapping etc, not just when you're turning. Quote Link to comment Share on other sites More sharing options...
HarshRider Posted April 19, 2005 Report Share Posted April 19, 2005 i was wondering if the change on head angles would also have a change on strength to :huh: as in a steeper head angle with forks with more rake! would this cause more stress in the area of head tube and forks? :P Rich Quote Link to comment Share on other sites More sharing options...
Ali C Posted April 19, 2005 Report Share Posted April 19, 2005 But straight forks still have rake. I guess curved forks are designed like that for a reasons, maybe it's better for having a disc? Anyway, the head angle makes loads of difference when you're on the front wheel/tapping etc, not just when you're turning. ← your right, straight forks have the same rake as curved forks (cue FatMike with a paint diagram :huh: ) curved forks are just the traditional way of doing it (like double diamond frames) straight forks are just another way. say you have a steep head angle but with a short stem, then you have a slack head angle with a long stem, the reach is exactly the same with both bikes so they would feel the same. Your hands are still in the same place in comparasen to the front axle. It would tap the same, feel the same on the front wheel, you would only know the difference when you turned. Quote Link to comment Share on other sites More sharing options...
Brian Bleech Posted April 19, 2005 Report Share Posted April 19, 2005 Anyway, the head angle makes loads of difference when you're on the front wheel/tapping etc, not just when you're turning. ← when your tapping the slacker the head angle the lower you can hit the wall without going over the bars headfirst into the wall. a bmxer once said to me, why does trials bike has bent forks, why not make the headangle slacker and have straight forks, i couldnt come up with an answer i think if you had a fully straight forks (no rake) you would have to have the head angle so slack, it would just feel like so very crap on two wheels, but then is a trials bike is that important? Probably not as much as say a bmx or mountain bike, but i think the steering would end up so sluggish....nah just not nice mike Quote Link to comment Share on other sites More sharing options...
Ali C Posted April 19, 2005 Report Share Posted April 19, 2005 when your tapping the slacker the head angle the lower you can hit the wall without going over the bars headfirst into the wall. mike ← but if your hands are in the same place it makes no difference. steep head angle + short stem = slack head angle + long stem and its olny flatland bmxs that have perfectly straight forks isnt it? every other bmx frok has a straight leg, but the axle is still raked out forward. Quote Link to comment Share on other sites More sharing options...
Brian Bleech Posted April 19, 2005 Report Share Posted April 19, 2005 (edited) but if your hands are in the same place it makes no difference. steep head angle + short stem = slack head angle + long stem and its olny flatland bmxs that have perfectly straight forks isnt it? every other bmx frok has a straight leg, but the axle is still raked out forward. ← I see where your coming from and do agree, but i think I am looking from a different angle (this is gonna require a paint diagram :huh: ) yeah its only some flatlanders that have the inline forks too i think, there was is one guy (i think he was german) you designed his flatland bike with straight forks, and inline (0 mm length) stem and bars and ran his brake levers pointing directly downwards so his bike would feel the same no matter which way his bars were mike Edited April 19, 2005 by leedstrials Quote Link to comment Share on other sites More sharing options...
Brian Bleech Posted April 19, 2005 Report Share Posted April 19, 2005 I made this fatmike-esqe paint diagram to demostrate my point, but half way through making it, i realised you were right ali :P :P because the relative body position on the bike will be the same. so as the front wheel hit bump they are both just as likely to pitch the rider over the bars. could possible be a vinco in the pic :huh: so what are we saying here that the head angle is realively unimportnant on a trials bike? mike Quote Link to comment Share on other sites More sharing options...
sexymike Posted April 19, 2005 Author Report Share Posted April 19, 2005 i think it is important, its just u can set ur bike up so its not e.g. changin the effective use of it by putting diff forks on. Quote Link to comment Share on other sites More sharing options...
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