Comments on: KTM 640 LC4 Single Cylinder Track Bike Project http://thekneeslider.com/archives/2008/09/29/ktm-640-lc4-single-cylinder-track-bike-project/ Motorcycle News for Positive People Sun, 12 Feb 2012 09:09:53 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Single Minded http://thekneeslider.com/archives/2008/09/29/ktm-640-lc4-single-cylinder-track-bike-project/#comment-223119 Single Minded Sun, 22 Mar 2009 18:44:37 +0000 http://thekneeslider.com/?p=2421#comment-223119 All bikes should be singles, just like there's only one design for a race-horse - or should we clone one with 6 or 8 legs? All bikes should be singles, just like there’s only one design for a race-horse – or should we clone one with 6 or 8 legs?

]]> By: dennon http://thekneeslider.com/archives/2008/09/29/ktm-640-lc4-single-cylinder-track-bike-project/#comment-168900 dennon Thu, 09 Oct 2008 23:52:23 +0000 http://thekneeslider.com/?p=2421#comment-168900 Very nice bike, almost every manufacturer builds a great enduro bike. It makes me wonder why none of them are putting these great light and compact engines into a sport bike. Properly set up they would have a great handling fun bike with less of the top speed license losing potential. Very nice bike, almost every manufacturer builds a great enduro bike. It makes me wonder why none of them are putting these great light and compact engines into a sport bike. Properly set up they would have a great handling fun bike with less of the top speed license losing potential.

]]> By: Kronslev http://thekneeslider.com/archives/2008/09/29/ktm-640-lc4-single-cylinder-track-bike-project/#comment-165169 Kronslev Wed, 01 Oct 2008 19:05:33 +0000 http://thekneeslider.com/?p=2421#comment-165169 Well...I think this needs a big thanks from the creator himself. I'm really surprised to find my project here on Kneeslider, and I want to thank you all for the comments. A few comments myself: The ground clearance is a product of the rear swingarm geometry, as hoyt has figured out. The missing license plate is purely because of mad legislation here in Denmark. The original idea for the exhaust was below the engine, just like the new KTM Duke. This would have been nicer as zipidachimp points out, but it became too bulky if it was going to be effective (big volume), so functionality won over looks. I am working on a small bikini fairing and a proper seat, but I can't find anything suitable to modify, so I have to start from scratch, and this is quite tedious. And money is a part of the equation. I could have had an exotic italian race bike for what this project cost, but that would not have been a third of the fun I have had now. I'm not in favour of showing off, but I try to promote the idea of creating our own projects. It will never pay off money wise to do projects like this, but it's really great fun and exiting. The downside is that it's addictive, so I'm working on two new ideas for future projects. Some basic data: Weight: 130 kg including oil and water. Power: 55 HP at the rear wheel Wheelbase/Rake/Trail: 1350 mm/66 deg/87 mm Tyres: 120/60-17 front and 150/60-17 rear Brakes: PFM Race caliper and disc with custom hub Front end: Ohlins FG845 fork with custom tripple clamps and custom caliper mount Engine: Standard (now old) LC4 with Keihin FCR 41 carb and custom exhaust Not as flickable as it can seem, but very neutral with no tendencies to any wallowing. And above all: Great fun to build and to ride Well…I think this needs a big thanks from the creator himself.
I’m really surprised to find my project here on Kneeslider, and I want to thank you all for the comments.

A few comments myself:
The ground clearance is a product of the rear swingarm geometry, as hoyt has figured out.
The missing license plate is purely because of mad legislation here in Denmark.
The original idea for the exhaust was below the engine, just like the new KTM Duke. This would have been nicer as zipidachimp points out, but it became too bulky if it was going to be effective (big volume), so functionality won over looks.
I am working on a small bikini fairing and a proper seat, but I can’t find anything suitable to modify, so I have to start from scratch, and this is quite tedious.
And money is a part of the equation. I could have had an exotic italian race bike for what this project cost, but that would not have been a third of the fun I have had now.
I’m not in favour of showing off, but I try to promote the idea of creating our own projects. It will never pay off money wise to do projects like this, but it’s really great fun and exiting. The downside is that it’s addictive, so I’m working on two new ideas for future projects.

Some basic data:
Weight: 130 kg including oil and water.
Power: 55 HP at the rear wheel
Wheelbase/Rake/Trail: 1350 mm/66 deg/87 mm
Tyres: 120/60-17 front and 150/60-17 rear
Brakes: PFM Race caliper and disc with custom hub
Front end: Ohlins FG845 fork with custom tripple clamps and custom caliper mount
Engine: Standard (now old) LC4 with Keihin FCR 41 carb and custom exhaust
Not as flickable as it can seem, but very neutral with no tendencies to any wallowing.
And above all: Great fun to build and to ride

]]> By: B*A*M*F http://thekneeslider.com/archives/2008/09/29/ktm-640-lc4-single-cylinder-track-bike-project/#comment-164750 B*A*M*F Tue, 30 Sep 2008 22:55:41 +0000 http://thekneeslider.com/?p=2421#comment-164750 Todd, you're a lucky man to have GB500. About 2 years ago I was constructing a budget to build my own bike for a cross country adventure. I started pricing pre-made components that I would buy (engine, lights, etc.), and then I started figuring up costs on likes like tubing, paint, and the like. Even using used parts whenever possible, I couldn't make the numbers work well enough to have anything left for the trip. I really admire anyone who goes ahead and builds a bike, because it's never cheap. Even if the dollar amount was low, the hours involved were still huge. Todd, you’re a lucky man to have GB500.

About 2 years ago I was constructing a budget to build my own bike for a cross country adventure. I started pricing pre-made components that I would buy (engine, lights, etc.), and then I started figuring up costs on likes like tubing, paint, and the like. Even using used parts whenever possible, I couldn’t make the numbers work well enough to have anything left for the trip.

I really admire anyone who goes ahead and builds a bike, because it’s never cheap. Even if the dollar amount was low, the hours involved were still huge.

]]> By: todd http://thekneeslider.com/archives/2008/09/29/ktm-640-lc4-single-cylinder-track-bike-project/#comment-164668 todd Tue, 30 Sep 2008 19:27:56 +0000 http://thekneeslider.com/?p=2421#comment-164668 nice, I agree with zipidachimp. This is like my GB500 but with twice the power and much better suspension and brakes... which makes me also agree with B*A*M*F about the "money" thing. -todd nice, I agree with zipidachimp. This is like my GB500 but with twice the power and much better suspension and brakes… which makes me also agree with B*A*M*F about the “money” thing.

-todd

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