Silver Streak


customized Harley-Davidson Sportster S 1250

Discover our new Sportster S

We give the Sportster S a layout that lives up to its name. A gem in shiny Bright Brilliant Blue, combined with sophisticated bronze-colored accents that give this powerful bike an incomparable elegance. This reinterpretation not only impresses with its elegant color scheme, but also with the combination of beefy wheels and high-quality performance parts from our production.

The Sportster S is a sporty motorcycle in the literal sense with plenty of ink on the pen. This applies above all to the powerful engine, with which you can tear chunks out of the asphalt in the highest riding mode.

In terms of layout, Harley has remained a little half-hearted, let’s put it that way. This applies above all to the chopper-style forward-mounted footrest system. The official range of accessories still includes so-called “mid-controls”, but only we have a proper rear-mounted footrest system. You will also find it on this SPS 5, which is to a certain extent our stage-one version of the SPS 4, which we have already presented to you.

The perfect acceleration orgy

The main difference to the SPS 4 is that we have kept the original tires and the single-disc front brake. The bottom line is that it’s a question of taste as to what you prefer, and of course also a question of money.

Cornering enthusiasts are certainly better served by the narrower wheels of the SPS 4. If, on the other hand, you prefer the powerful appearance of the bobber wheels and like to celebrate acceleration orgies on straight stretches, you can choose our SPS 5. And because we also think the wheels are cool, we have developed a new, sleeker front fender for the original tires. The rear-mounted footrests will now give it a better grip, and the pressure on the Spirit Leather saddle with its more pronounced edge will no longer cause it to slide backwards.

Temptation on the street

However, we did not want to conceal our newly milled triple clamps for the SPS 5. This means that our narrower handlebars also work here. Good against the wind, but beware, on country roads the speed limit is still 100 km/h, and the temptations of our SP-S 5 can quickly catapult you well beyond that.

Small goodies, such as a milled lamp mask and milled radiator cover, eliminate the plastic look of the standard version. Micro indicators also contribute to this, and the handlebar levers show at first glance who did the customizing.


The Spirit Leather saddle shows edge and provides better support

Particularly important: back-laid with studs for perfect grip under acceleration pressure

The new front fender now also has a sporty design

Parts & Details

  • Thunderbike Windshield Kit black
  • Thunderbike Frontfender SP-S
  • Thunderbike Triple Tree SP-S contrast cut
  • Thunderbike Turn Signals Stripe LED with Housing black/smoke
  • Thunderbike Taillight & Turn Signal Kit black
  • Thunderbike Mirror Bracket Set black
  • Thunderbike Side Mount Licence Plate Bracket Medium Pro black matt
  • Thunderbike License Plate Frame Inside Plate
  • Thunderbike License Plate Lighting
  • Thunderbike Shock Adjusting Knob satin black
  • Thunderbike Foot Controls SP-S recessed contrast cut
  • Thunderbike Rider Footpeg Set SP-S black
  • Thunderbike Shift-Peg satin cut
  • Thunderbike Grips SP-S satin black cut
  • Thunderbike Pulley Cover front contrast cut
  • Thunderbike Frame Cover black
  • Thunderbike Radiator shroud set bicolor
  • Thunderbike Clutch Cover SP-S
  • Thunderbike Timer Cover
  • Thunderbike Heat exchanger Cover black
  • Thunderbike Alternator Cover SP-S
  • Thunderbike Belt Guard black
  • Thunderbike Swing Axle Cover black
  • Thunderbike Handlebar SP-S1 Alu 80.5cm black matt
  • Rizoma Mirror Dynamic black

Metallic looks better

Our cover for the drive pulley on the secondary drive also contributes to the fine-tuning. As we said, plastic doesn’t have to be used if it simply looks better in metal.

And, of course, we gave the SPS 5 another Jekill & Hyde system. Two-in-one, that’s a point of honor, because nobody can be happy for long with the two pipes of the original Sportster S in the current zeitgeist, which is called “performance”.



Author / Editor

Michael Ahlsdorf

Your Contact


Thomas Emky

Custombikes Service Workshop

0049 2852 - 6777-56
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Julian Segler

Sales, Financing, Rental, Custombikes

0049 2852 - 6777-41
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Roman Reiners

Customparts, Dealer Support

0049 2852 - 6777-30
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Nico Schnepel

Customparts, Dealer Support

0049 2852 - 6777-30
Send an email

More Sportster S conversions and the Nightster 975

You can find Thunderbike Parts and original Harley-Davidson Parts  in our online shop.


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