|5th October 2012||#67802|
|5th October 2012||#67803|
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I've always been in the mind set that tight HTs, small rakes, short wheelbase and short stems makes a bike twitchy. This mindset was formed in the world of bmx though, where it seems there is no such thing as an industry standard
|5th October 2012||#67804|
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Noob question, I never actually installed a 1'1/8" headset, only 1" headsets, how do you install them? I'm confused, i always thought you just press them in but it seems you need a huge tool, maybe i'm better off going to my lbs? just rather do it at home if possible, can some one clear that up for me? Thanks.
It's for my steamroller by the way, no idea if that makes a difference.
|5th October 2012||#67807|
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The rubber hood still have cut out for the shifter thought.
|5th October 2012||#67808|
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|5th October 2012||#67809|
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The $30 Tektro RL520 are not butchered, have a strong spring that prevent rattling when using a dummy lever, and can be found in black or silver. I don't understand why everyone insists on getting Campagnolo or SRAM and not these (or the Cane Creek SRC-5C ones which I didn't try).
|5th October 2012||#67810|
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Shimano's singlespeed levers are very nice, the R400 a bit flexy, haven't tried the R600 which I assumed should be less flexy.
Having said that, it's quite a personal choice, the Shimano and Campag levers are reasonably small.
I got Campagnolo Record singlespeed levers simply because they were really comfortable, luckily got them second hand, however given that Campagnolo are easy to service, you can get a cheap Xenon set second hand and removed the shifting part.
|5th October 2012||#67812|
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|5th October 2012||#67816|
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It is indeed the smaller a trail is (distance from a imaginary line from in the same angle, and from, the head tube center, to the point directly under the front axle), the faster its front end handling.
But, as you say, the rear end handling (you steer with the back of the bike too!) is also dependent on the BB drop and chain stay length.
More BB drop means we can apply our weight to make a lower center of gravity and use that to control the rear end, like how we hunker down into a corner, it equates to easier and better control of the bike.
Chain stay length seems to go that the longer the stays are, the better the ride quality... yes, I did just say tight rear clearances aren't necessarily better!
They have traditionally used shorter stays because of the stiffness needed that they simply didn't have from the material technologies, but we've advanced a hell of a lot from the 60s - 70s, and having chain stays as short as possible simply isn't needed anymore as we have much better materials, but can also shape the materials in incredibly stiffer shapes with varying sidewall thicknesses.
So the wheelbase of your frame is a balance between speed stability and agility.
When you're driving, you use larger movements the slower you're going, but if you used that same movement doing a ton down the M4, what's gonna happen?
So, faster bikes actually need to steer slower.
If you measure the actual distance traveled by a short rake fork and that of a longer rake fork, which fork moves the furthest?
Its the longer rake fork that moves the most, not something you want to happen at speed with an already twitchy frame because of its high BB, short wheelbase, and steep head tube angle, which is why track bikes have to have less rake to be stable enough to ride.
Please someone explain it better if I've not got it right or it isn't clear!
Last edited by AngelD; 5th October 2012 at 16:12.
|5th October 2012||#67817|
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I fitted a fork with less rake to the smash and it made the steering twitchier, which I liked.
Due to this practical experiment I will now ignore any other posts on the matter, including the above, which seems like speculation rather than fact.
My opinion, a fast bike would want twitchier steering for sharper manoeuvring in dicey situations. Touring bikes with more rake have more relaxed stable steering due to long hours on the road and load bearing.
|5th October 2012||#67818|
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Have a look at the link Regal posted, it explains it better than I can, and is written by a frame builder to boot.
And I'm sorry to say TM, but if the two forks had the same axle to crown length, it is impossible for the shorter rake fork to have been twitchier/faster unless it was also more flexible, and that was the flex that made it feel "twitchier".
I've read papers, interviews, and advice from frame builders and other knowledgeable bods and they all agree, less trail = faster handling, and less rake = more trail, not less.
|5th October 2012||#67821|
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Quote from a motorbike site explaining trail characteristics -
|5th October 2012||#67822|
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Yes its 1'1/8" threadless
|5th October 2012||#67824|
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you can make yourself a rudimentary headset press using some threaded rod a few washers some wood and a couple of spanners. but basically, make sure the cups go in straight.
a la https://www.google.co.uk/search?q=ho...Ioq80QW8-4DgAw
|5th October 2012||#67828|
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Yeah seems simple enough, i got everything else to build the rest of bike at home, i may give it a go, but if i go to my lbs i can use the proper tools and cut down the fork properly to, if i pick the right time they should let me do it my self.
Ordered everything but the headset to get my surly ride-able, then i will finish it off at the end of the month, make sure i don't end up with a 10er left in my account and living on toast again :P
Total £106.55 GBP - and now we wait...
|5th October 2012||#67840|
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|6th October 2012||#67841|
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Really looking forward to a proper ride once I've got these few niggles sorted out.
Also, what do you think about using a Planet X carbon CX fork instead of the Surly steel one? Got one here and not sure what to do with it.
Not going to be doing any heavy touring.
Last edited by ChrisMGS; 6th October 2012 at 00:41.
|6th October 2012||#67843|
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|6th October 2012||#67845|
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ChrisMGS - Post some proper DS photos please! Been looking forward to seeing this one turned out.
wharry - I kinda agree with boredom, always has been a pretty frame, but for every day riding that looks about perfect, saddle helps with that, but it altogether works very nicely.
|6th October 2012||#67847|
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Only downside is that it only takes 32mm tyres with fenders. Won't be doing any offroad riding anyways though.
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