Predecessor KTM 400 EGS Displacement (cc) 449.3 Kerb weight (kg) 111 (Without fuel) | Production 1999-present Fuel tank capacity (litre) 9 | |
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Also called KTM 450 XC, KTM 450 XC-W Bore / stroke 95 mm / 63.4 mm, 449.3 cc Starting method Kick start, Electric start |
Ktm 450 exc dual sport bike build
The KTM 450 EXC is a 4-stroke enduro off-road motorcycle made by KTM. The models are the European road legal 400 EXC and 450 EXC, the US 450 (Close Ratio) XC and 450 (Wide Ratio) XC-W. The european EXC versions have a small headlight, speedometer, tail-light and somewhat softer linkless (PDS) rear suspension. The US EXC is 50-states street legal.
Contents
- Ktm 450 exc dual sport bike build
- 2016 ktm 450 exc test ride wheelie power
- 2000 2001
- 2003
- 2005 2007
- 2007
- 2008 2009
- 2010 2012
- 2013 present
- References

2016 ktm 450 exc test ride wheelie power
2000 - 2001

The factory RFS (Racing Four Stroke) KTM 400 EXC won the 1999 World Enduro Championship. The 2000 RFS KTM 400 EXC had a right side kickstarter but also had the E-start button. KTM took a different approach to the configuration of the motor than most other manufacturers. While others used a 90mm-plus bore piston with a very short stroke of 60mm, the KTM RFS motor used an 89mm x 64mm configuration which provided more torque at the expense of higher RPM's.
2003

This was the first year of the 450 EXC model. It evolved from the earlier 400 EXC model, with an increased displacement via a longer stroke.
2005-2007

These years saw a new frame. Improving the handling without major changes. Rear body work changed to the single piece design off the SX model. The 2006 450 EXC made 42 hp (31 kW) and 37.5 ft-lbs. torque.
2007

This was the first year that the 450 EXC was offered in full factory 50-state street legal trim. The conversion of the previously available model required changes in gearing, exhaust, DOT approved tires and lights and the addition of turn signals, and a horn. Other than these changes the bike was virtually the same as the previously off-road only bike. The US off-road only version of the EXC was replaced by the XC (Close-ratio transmission) and XC-W (wide-ratio transmission) models. 2007 was also the last year of the RFS motor. The RFS is very torquey and is known to have very good reliability. In some cases, the fully stock engines last for more than 45k miles. The RFS bike is known to be a good dual sport and super motard bike. The wide ratio 6-speed transmission will run all day long on the highway. Due to their dual-sport ability, there are larger aftermarket fuel tanks available (11~26L).
2008 - 2009

As of 2008 the US version of the 450 EXC continued to be sold in street legal trim but was replaced by the off-road only 450 XC or 450 XC-W in the US market. A new chassis was introduced in 2008 with improvements in suspension and handling. The RFS motor available in 250 cc, 400 cc, 450 cc and 510 cc models between 2000 and 2007 was replaced with the XC4 motor beginning with the 2008 model year. The XC4 450's have more power; with a 95 mm x 63.4 mm bore and stroke producing about 51 hp (38 kW). Reliability may have gone down; some people experience top-end issues with the new engine, while others run without incident.
2010 - 2012
Offered as the Champions Edition in 2010. New features include new front Brembo brake caliper, PDS needle design, frame welded to steering head 10mm lower, reinforced gear box (1,2,5,6 idler gears), reworked chain adjuster & clamping rail, better tension on timing chain (noise reduction).
2013 - present
For 2013, new features include EFI Fuel-injection, a diaphragm spring clutch and a lighter battery.