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No - can't get a trial run on this - the fork is on the bike, I cut the steerer yesterday, got the star nut and crown race installed today and put everything back together. Very short ride seemed okay but weather and other issues will prevent a reasonably long test ride for a few days.Please report back after you get an adequately long test ride as I'm interested in knowing how the fork change works out. Also, see how the bikes handles with your touring load. It will interesting to see how really noticable a major increase in trail like this is.
Actually, the Cannondale fork rake is 53 mm, the Surly is listed as 45 mm, so if I go through with this project the result will be more sluggish handling and more stability in a straight line - correct? Is 8 mm difference between stock and the Surly enough to make this project a no-go?A difference of 8 mm will certainly make a noticable difference in handling response. If the Cannondale's stock fork has a rake of 53 mm as you say, that implies the headtube angle must be quite shallow as the high rake value is needed to keep the trail measurement in the normal range. Reducing the rake will give a lot more trail and will slow the handling and improve high speed stability but may also lead to some "wheel flop" tendencies at very low speeds. Any way to try before you buy?
Thanks again all! Ed
The LHT fork has a bit more rake than the Cannondale fork, so you'll have a slightly wider wheelbase for a smooth ride....The difference in rake will have a completely negligible influence on wheelbase. It will, however, effect the handling and responsiveness of the bike. More rake equates to less trail which will "quicken" the bikes handling, that is the bike will turn a bit more eagerly and be a bit less stable in a straight line.
Not to mention the whole task of finding a dealer that you trust and ordering a bike that is your size. Here, a 520 is around $1200. Unless you can stay for free with friends, what are the costs of staying in a hotel while you wait for a dealer to get a 520 and build it up.This brings up an important point, if you do plan to buy the bike after you get to the US, you MUST arrange for it well in advance. Contact dealers and find one that will have exactly the bike you want, in the size you need and equipped as you want BEFORE you arrive. You can pay by credit card to assure the dealer you are serious but be certain the bike is accounted for and in stock before you arrive.
I used hear that you replaced the chain and cluster together, and the rings every 3rd chain.No, you change chainrings when they are worn out and not shifting properly.
Shimano did not license the SPD system to anyone. It was invented in the early 1990s. Its patent expired a few years later. Then lots of Taiwanese Chinese companies started making copies of it.If the SPD design was invented in the early 1990's, the patent wouldn't have expired until 17 years after it was granted or 2007 at the earliest.
I put more than 20k on my recumbent's bottom bracket and the cranks have 34k on them. The chainrings have been replaced three times; rear cassette twice; five chains, maybe six.I do have to ask why you changed your chainrings that often? My experience is that under normal road use, chainrings last at least 20,000 miles and often myuch more. I've gotten 30,000+ miles on several Shimano road cranks chainring sets and they still shifted cleanly and there was no chain skipping and, no I don't change chains all that often either.
david boise ID
For the record, "SPD" originally stood for "Shimano Pedaling Dynamics" and is a Shimano trademark. You are correct that SPD has pretty much become a generic term for MTB-type clipless pedals whether made by Shimano, Look, Time, Wellgo or anyone else. I'm sure Shimano's lawyers are busy defending the trademark.
There are no regular pedals of any kind, road or mountain. Not even platforms or traps are regular any more.
SPD is a commonly used term that describes a more or less universally compatible cleat/pedal interface that Shimano has licensed to many mfrs. SPD is said to stand for Shimano Pedal Device but that's oepn for conjecture and argument.
david boise ID