The Kriega Waterproof Messenger Bag


We receive a Kriega Waterproof Messenger bag to review. I’ve been testing it for about a few weeks now and its safe to say the next bag I buy will likely be the Kriega Waterproof Messenger bag. The Kriega Messenger bag has a 16-liter main compartment with a roll-top mouth, a plastic-encased pouch underneath the bag’s flap, and a quick-access side pocket with water-resistant zippers.

It’s also made with durable materials like Cordura, Hypalon and ripstop nylon but still looks stylish enough to wear to work without being mistakes for a sloppy man bag.

Living in Thailand, and at end of the raining season, I’ve had enough opportunities to test how waterproof the Kriega Messenger bag is and it has come up trumps every time. You could almost swim with it. But another standout feature is how comfortable it is on longer rides. The strap, which can be swapped to your right of left side, is padded and contoured so that your shoulder doesn’t hurt when carrying heavy gear, and the quick-adjust buckle makes the bag easy to remove when you’re wearing bulky leathers.

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Motorcycle Disc Brakes Explained


Recently we had a few people asking about brake specifications and if we could explain the differences between different technologies. So we will try to explain a few of the things you can find in motorcycle specification regarding the brake system…

First the floating brake disc. A floating disc is a brake setup wherein the brake disc or rotor is mounted using rivets on a carrier, which, in turn, is mounted on the hub. The carrier enables the brake disc to move parallel to the axis of rotation. The calipers on either side grip the brake disc, so pressure is applied to both sides of the disc.

High performance motorcycles use radially-mounted calipers, which make a difference on track. However, series production motorcycle benefit from the lower weight unit. Performance-oriented motorcycle, from the Benelli TNT300s and KTM 390 Duke to the Kawasaki Ninja ZX-14R and Suzuki GSXR1300 Hayabusa, use floating discs at the front. Conversely, fixed discs are mounted rigidly to the wheel hub and use floating calipers.

For the floating caliper a brake setup moves with respect to the brake rotor or disc, parallel to the axis of rotation to the disc. Pistons on one side of the disc push the inner brake-pad until it makes contact with the surface of the disc, then pulls the caliper body with the outer brake-pad, so pressure is applied to both sides of the disc.

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Local Made Motorcycle Riding Jeans - The Denim Pants that Protects


Being a responsible motorcycle rider dictates that you wear all your riding gear whenever possible. But a pair of riding pants don’t really look cool on the now so popular retro cafe racer, do they?

Nor does sitting in a coffee shop while wearing them or going to work in them. But if your answer was ditching them altogether, think again, for riding jeans are the solution you never realized you needed.

Regular denims are tough as it is, but motorcycle riding jeans are specifically designed to take on a much more severe beating. Infused with materials such as T400 Lycra, 600D fabric and in the premium ones. Kevlar, they provide a superior level of abrasion resistance.

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The Headwave TAG turn your Helmet into an Acoustic Device


If you’re one of those riders who like to spend hours leisurely cruising along highways, listening to music that makes your ride more enjoyable, you may want to keep your eyes peeled for this one. The Headwave TAG is an adhesive acoustic device that is called a Concert Capsule, and fits onto your helmet and literally makes music through vibrations.

Yes, you read that right. It doesn’t have any speakers that you’ll need to stick inside your helmet and slightly change the way it fits. It turns your helmet into a music device and harnesses vibrational energy from an Exciter, which in-turn sends audio waves through your helmet itself, for a rather unconventional surround sound experience.

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What Makes a V4 Engine So Special?


Engine configuration is a compromise, and for a motorcycle it’s a vital one considering its interaction with the rest of the machine – both in terms of package and dynamically. However, there’s clearly more than one way to do it since there are a wide variety of possible motorcycle/engine configurations that work well, with all of their creators claiming that they are the panacea. So let’s think about the advantages and disadvantages of some…

Width is probably the most important dimension regarding how a motorcycle feels, especially for the novice rider. Simple, then: let’s build a single or a V-twin. While this is good for width at the top of the engine, the gearbox is probably the widest part – getting the gears and the clutch on a single shaft dictates this. So a two-cylinder bank probably gives the minimum practical width. And a V-configuration is nearly always more expensive to manufacture than an inline one for any given number of cylinders, too.

Of course wel all like performance, and to generate it more cylinders always helps. This is because for the same capacity and bore/stroke ratio smaller cylinders give a shorter stroke, and this, within mechanical limits, gives the ability to rev. The Honda VFR800F engine has the same bore and stroke of the original 800 from 1998, which shared its bore and architecture with the Honda RVF759R (RC45) superbike, so it can clearly make power.

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Forged Wheels or Cast Wheels


Casting is relatively simple: first you create a mold, then you pour molten metal into it. This only works for simple shapes though. Casting thin sections, for example, is difficult, as the liquid metal cools quickly as it enters these and solidifies before they’re filled.

Forcing the metal in under pressure fills the mold more quickly, giving the metal less time to cool, but this causes bubbles to form.

This is a problem for two reasons. One is that it weakens the metal, so you need more to retain enough strength, and it weighs more. Second, it means you can’t machine the metal very much. Go too deep and you’re into the porous inner, which means you get a much weaker structure and, on a wheel, it might not be airtight either.

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Lightweight Wheels Worth Buying?


Some motorcycle owner asked me are lightweight wheels worth buying. A few years back I fitted a set of lighter BST carbon-fiber rims to my Ducati 1098. I was very impressed about the lighter wheels, and would recommend them to anybody who can afford them, especially if the motorcycle has heavier cast items like the Ducati Multistrada from the person who asked about lightweight wheels.

I have used lightweight wheels over the past 10 years, and have never been disappointed by the performance they deliver. Whether you’re on road or racetrack, the significant reduction in unsprung mass dangling at the end of your fork and swingarm is revelatory.

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The Kriega US-20 Tail Bag - Two Years Old and Looks Good


I have this amazing Kriega US-20 tail pack for more than two years. I’d written about it before for another English language motorcycle magazine and concluded that it’d performed flawlessly. Two years later it’s still doing it – and that’s a sign of an extremely good product.

And as long-term testing goes, the Kriega US-20 tail pack has been through the wringer. I still use it frequently and have fitted it to at least half the motorcycles we have tested over the two-year period. I don’t know how many thousands of kilometers that might be by now, but in at least one aspect the pack has gone beyond mere milometers as a measure of its toughness. It has been swapped from motorcycle to motorcycle far more often than it was designed to be.

The straps that make up the main part of the mounting system are really intended to be put on one motorcycle and then trimmed to fit and left there. I’ve re-strapped the bag dozens of times and never trimmed the strap ends. I do carefully tie or tuck them out of the wind to reduce the damage done by flapping in the breeze or resting against an exhaust, but even so I reckon they’ve stood up to it better than expected. They’re quality items.

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Fake Motorcycle Helmets Pretending to be Big-Brand Units


There are counterfeit motorcycle helmets out there pretending to be big-brand units, but built cheaply and badly by shonky factories. There are also so-called novelty helmets, some of which are so novel they have replica approval stickers and labels on them…

I once met a guy, who was a motorcycle safety expert described one fake helmet he’d come across as being ‘like a plastic bucket with a visor, definitely unsuitable for use on the road’. Yet the helmet looked for all the world like a real one.

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The Metzeler RoadTec 01 Tire - Amazing Grip on all Road Surfaces


If someone had told me that a set of tires could transform my motorcycle overnight I’d have thought they were mad – but that’s pretty much what happened when I fitted a pair of Metzeler RoadTec 01 tires on my sport-touring motorcycle.

The Metzeler RoadTec 01 is not just an upgrade from its predecessor, the RoadTec Z8, but a brand new tire that has been developed to offer a higher level of grip in all weather conditions white extending the durability by up to 10 percent, according to the technicians at Metzeler. As I got over 16,000 kilometers out of my previous Michelin Pilot 3 tires, it’ll be interesting to see if the Metzeler RoadTec 01 tires can match that distance.

Metzeler have achieved this apparent tire trickery courtesy of a new tread pattern design: the grooves on the front are positioned more transversely to the rolling direction along with new longitudinal groove angles, which are apparently better for dealing with water drainage. The rear has a ‘Drop and Saber’ tread pattern on the sides and this is positioned in the opposite direction to the rolling direction.

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