HyperPro Suspension Upgrade – The Search For Shocks

NT1100 Suspension Upgrade

I do enjoy the adventures that owning a motorcycle brings. After the damp and dark months caused some unscheduled thinking, I found myself looking at the mileage I had put on the Tracer 9GT and the Ducati Multistrada.

This obviously explains why I’m now on the hunt for a suspension upgrade for a Honda NT1100. Happy Days.

Trade-In Time

Having covered sixteen thousand miles on the Tracer 9GT in a little over two years and eighteen thousand on the Multistrada – which did include a month on the road riding around Europe – it was time to investigate trading them.

Riding them for another year would put the mileage against them when the time came to sell. I was at that point: get out now with just the usual angst and aggravation that comes with selling a motorcycle, or add “The mileage is a bit high, but I’ll take it if you lower the price” to the list of irritations.

Weirdly, we think this way. If the bike is looked after, thirty thousand miles is nothing, but the expectation when selling is that three or four thousand miles a year is the norm.

Dangerous Thinking

Having these thoughts is always dangerous. Once I start down this path, it usually only ends one way, and had you asked me at the start of the process if I’d end up buying a Honda NT1100, I’m not sure I would have agreed.

The Suzuki DE800 was high on the list. If they were to give awards for the most comfortable motorcycle, the DE800 would need to be in a class by itself to let other motorcycles have a chance. If only it ran tubeless tyres. Yes, I have a stupid phobia about tube tyres. I should get over it.

Suzuki V-Strom 800DE

  • 776cc Parallel Twin – 84 BHP – 78 Nm 
  • 230 Kg – 855mm Seat Height – Low Seat Option
  • 3-Year to 7-Year Warranty (70K Miles)
  • Fully Adjustable Suspension
  • Suzuki SIRS Electronics Package
  • 220m Ground Clearance
  • 220mm of Suspension Travel
  • Switchable ABS – Detachable Rear Subframe
  • Tubed rims – 90/90R21 and 150/70R17 tyres

After many a long night on the internet looking at motorcycle porn and comparing one deal against another, a 2023 Honda NT1100 is now parked in the garage, and it is as much a mile-munching, flexible, easy-to-ride motorcycle as my notes from two road tests – Manual and DCT – say it is.

With my propensity for high mileage, perhaps I should have bought something less comfortable to dissuade me from thinking a quick ride is 100 miles long. After six weeks and having covered 1,800 miles on the NT1100, it is too late to be having those thoughts now.

Upgrades

I don’t think there is a motorcycle that comes complete with all of the options we would like. BMW has its predefined option packs, and other manufacturers vary between collections of popular add-ons and individual upgrades for us to choose from.

Manufacturers even offer upgrades as sales incentives on new motorcycles, which makes me wonder why they didn’t just fit them to the bike in the first place if they are going to give me £750 of “free” upgrades with the bike.

In my case, I would have liked Honda to have spent some of the £750 on a decent set of real tyres rather than fitting the nasty, fake OEM Sportmax GPR-300 tyres. The GPR-300 is a budget city (urban) tyre, yet the ones fitted to the NT110 in the factory are half a kilo lighter than the real GPR-300.

Thankfully, it is an easily solved problem. With a set of Dunlop Roadsmart IVs fitted, the NT1100 is now more responsive and predictable. All of which leads me neatly to my desire to upgrade the rear shock.

Suspension Upgrades

The first few lines of Honda’s marketing material make it clear that the NT1100 is “… good in the city and a capable Grand Tourer with easy handling and long-travel suspension.” I’m paraphrasing, yet importantly, Honda doesn’t use the word “Sports” anywhere in the description.

The NT is a tourer, not a sport tourer. That said, you can still hustle an NT1100 along a B road. It won’t transform into a Fireblade, but it will put a grin on your face.

2023 Honda NT1100 Stats

  • 1084CC Twin – 101 BHP – 104 Nm 
  • 238 Kg – 820mm Seat Height
  • 310mm Twin Disks with 4-Pot Calipers
  • 256mm Single Pot Rear Disc
  • Preload Adjustable 43mm Showa Forks
  • Showa Rear Shock – Remote Preload
  • 120/70R17 Front Tyre
  • 180/55R17 Rear Tyre

If the road is smooth, then the standard NT1100 suspension is adequate, but B-road scratching is the quickest way to highlight the rear shock’s limitations, especially if there are a few bumps.

Add braking, which takes weight from the rear, plus the desire to change direction, and it doesn’t take much for the rear end to get frisky.

Needs and Wants

Five minutes with a mug of tea and the internet, and I have pages open for all the usual aftermarket suspension suspects – Maxton, Nitron, K-Tech, Öhlins, YSS, BiTurbo and a Dutch company called HyperPro, which I found thanks to the NT1100 Forum.

Knowing how to extract the best performance from motorcycle suspension is a dark art, and there are people with a lot of specialist knowledge who know more than I do. The basics, though, go like this:

The springs cushion the forces acting on the wheels, giving us a smooth ride and keeping the wheels in contact with the road surface. As these forces constantly change when riding, the springs are always compressing and rebounding.

Spring rates measure the force required to compress the spring a set amount. It also defines the force with which the spring will return to its unloaded length when the compression force is removed.

Typically, we think of springs as having a linear compression rate, whereas most motorcycle springs have a progressive rate. The more the spring is compressed, the harder it becomes to compress it further. This is done by altering the distance between the coils across the spring’s length.

If you look at your rear shock and the spring is more tightly wound at the top than the bottom, you have a progressive rate spring.

Preload is the amount of compression we apply to the spring to set it for the weight it is carrying and our preference for how we want the bike to feel.

Compression damping slows the rate at which the spring compresses. As the force is applied, the spring absorbs the load, and the compression damping controls the rate at which the spring compresses.

Rebound damping is compression damping in reverse. Once the force that compressed the spring is removed or reduced, it will want to return to its natural length.

Without rebound damping controlling the rate at which the spring expands, it would quickly release all the energy that made it compress, resulting in a bouncy ride.

Double Bumps

Two or more bumps in close succession can create problems without good rebound damping.

The first bump compresses the spring, and once the load from the first bump reduces, the spring starts to expand back to its natural length, creating a downward force on the rear wheel.

As the second bump arrives, it tries to push the wheel up while the spring is still pushing the wheel down.

If the two forces are strong enough, this causes the rear wheel to skip, destabilising the rear end.

Rebound damping slows the rate at which the spring expands (unwinds), reducing the forces and making the second bump more easily absorbed.

I’m a long way from having a deep understanding of how it all works, and I’m sure I’ve oversimplified that explanation, but (very) roughly, that is what is going on.

There is an excellent series of short videos on the Power Drift Channel on YouTube explaining motorcycle suspension in more detail. Well worth watching.

HyperPro Suspension

HyperPro Suspension Upgrade - NT1100Ignoring how each manufacturer builds their shocks and the patented methods by which the springs are controlled, the difference between shocks is the granular levels of control that we have over how the springs react to changes in the road surface and our inputs as we ride.

The standard NT1100 shock can only be adjusted for preload. Adjustment to rebound or compression damping isn’t possible.

Fitting a top-of-the-line Öhlins rear shock with fast and slow compression damping to go with almost infinitely adjustable rebound damping and ride height adjustment would be the perfect answer. Yet when the rest of the motorcycle – let alone my skills – can’t extract the advantages such a rear shock would bring, it would be more bling than beneficial.

Which leaves me looking for the best solution at a reasonable cost. I need a shock with a remote preload adjuster (HPA), as the NT1100’s bodywork hides the top of the rear shock, preventing the use of C spanners or a Tommy bar to make adjustments.

I need to ensure that the spring has the correct rate for my weight and the range in the preload to compensate for luggage and pillions. In an ideal world, I’d have compression and rebound damping, but that is likely to drive the cost up. If I have to lose one, then compression damping could go. I need rebound damping.

After searching the internet for available options, I think I’ve settled on the HyperPro Emulsion Shock with the hydraulic preload adjuster, as it offers the best balance of features, design and quality for the money.

Cheap isn’t a word that can be used with any of the after-market suspension upgrades, and I need to talk to a suspension guru before parting with my cold, hard cash.

But now that I’ve started down this path, it is more of a question of when, rather than if, I upgrade the rear shock on the NT1100.

It is only money – what could possibly go wrong?

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