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power, performance

Conversions from alpha Technik are impressive not only due to the large range and its constant updates, but also because of the simple modification process, detailed installation instructions and fast delivery service.

Proudly holding your A2 motorcycle licence, you've seen your dream motorcycle at the dealer, distributor - it HAS to be this bike! The small catch: the standard power output is too high for the progressive licence. Is the dream over? On the contrary, with alpha Technik power, performance reductions to 25kW or 35kW, your motorcycle dream becomes a reality instantly!

With care and a great deal of know-how, alpha Technik has also been developing power, performance reductions to 13, 15, 17, 37, 57, and 70/72 kW for years. These restrictions are in high demand as they allow for a more favourable insurance classification. Vehicles that only slightly exceed the respective power, performance limit by a few kW are ideal for this.

Meeting friends, riding to school - being independent, mobile and free. The restrictor kits from alpha Technik make this possible at a favourable price. They are quick to install and available immediately from stock for around 600 scooter models. Our range includes, among other things, power, performance reductions from 50/45 km/h to 25 km/h and power, performance increases for 45 km/h vehicles.
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20km/h Restriction Kit for QJ Explorer Vendetta Commodo, Type B71, from Model Year 2010
20km/h Restriction Kit for QJ Explorer Vendetta Commodo, Type B71, from Model Year 2010
Item No. 06-B71-LM65

€219.00 gross

25 kW Certificate for Yamaha MT-03, from model year 2007-
25 kW Certificate for Yamaha MT-03, from model year 2007-
Item No. 05-RM02-K26

€119.00 gross

25 kW Restriction Kit for Yamaha MT-01, RP12, from model year 2005 onwards
25 kW Restriction Kit for Yamaha MT-01, RP12, from model year 2005 onwards
Item No. 05-RP12-K25

€119.00 gross

35 kW Restriction Kit for Benelli TRK702 / TRK702X, Type PA8, from Model Year 2023
35 kW Restriction Kit for Benelli TRK702 / TRK702X, Type PA8, from Model Year 2023
Item No. 06-PA8-MCK35

€249.00 gross

35 kW Restriction Kit for CF Moto 650NK, Type CF650-7F, from Model Year 2021-
35 kW Restriction Kit for CF Moto 650NK, Type CF650-7F, from Model Year 2021-
Item No. 06-650NK-MCK35

€249.00 gross

35 kW Restriction Kit for Honda NC750X, Type RH09, from Model Year 2021-
35 kW Restriction Kit for Honda NC750X, Type RH09, from Model Year 2021-
Item No. 02-RH09-MCK35

€249.00 gross

35 kW Restriction Kit for Kawasaki Vulcan S, Type EN650J, from model year 2021
35 kW Restriction Kit for Kawasaki Vulcan S, Type EN650J, from model year 2021
Item No. 03-EN650J-MCK35

€249.00 gross

35 kW Restriction Kit for Kawasaki Z650 RS, Type ER650M, from Model Year 2022-
35 kW Restriction Kit for Kawasaki Z650 RS, Type ER650M, from Model Year 2022-
Item No. 03-ER650M-MCK35

€249.00 gross

35 kW Restriction Kit for Kawasaki Z900 70kW, Type ZR900H, from Model Year 2021-
35 kW Restriction Kit for Kawasaki Z900 70kW, Type ZR900H, from Model Year 2021-
Item No. 03-ZR900H-MCK35

€249.00 gross

35 kW Restriction Kit for Yamaha MT-07 / MTN690, Type RM33 / RM46, from 2021
35 kW Restriction Kit for Yamaha MT-07 / MTN690, Type RM33 / RM46, from 2021
Item No. 05-RM33-MCK35

€249.00 gross

35 kW Restriction Kit for Yamaha MT-07 and MT-07 Y-AMT, Type RM53 / RM50, from model year 2024-
35 kW Restriction Kit for Yamaha MT-07 and MT-07 Y-AMT, Type RM53 / RM50, from model year 2024-
Item No. 05-RM53-MCK35KBA

€319.00 gross

35 kW Restriction Kit for Yamaha MT-09 / MTN890-U, Type RN82, from model year 2022 onwards
35 kW Restriction Kit for Yamaha MT-09 / MTN890-U, Type RN82, from model year 2022 onwards
Item No. 05-RN82-MCK35

€249.00 gross

35 kW Restriction Kit for Yamaha R7, Type RM39, from model year 2022-
35 kW Restriction Kit for Yamaha R7, Type RM39, from model year 2022-
Item No. 05-RM39-MCK35

€249.00 gross

35 kW restrictor kit for Aprilia Tuareg 660, Type XB, Model year 2022-
35 kW restrictor kit for Aprilia Tuareg 660, Type XB, Model year 2022-
Item No. 06-XB-MCK35

€249.00 gross

35 kW Restrictor Kit for Kawasaki Z650 / Z650 Sport, Type ER650S, from model year 2023-
35 kW Restrictor Kit for Kawasaki Z650 / Z650 Sport, Type ER650S, from model year 2023-
Item No. 03-ER650S-MCK35

€249.00 gross

35 kW Throttle Kit for Suzuki GSF600 Bandit, GN77B from model year 1995
35 kW Throttle Kit for Suzuki GSF600 Bandit, GN77B from model year 1995
Item No. 04-GN77B-K35

€119.00 gross

35kW Restriction Kit for Ducati Scrambler / Scrambler Nightshift / Scrambler Icon Dark, Type 3K, from model year 2021-
35kW Restriction Kit for Ducati Scrambler / Scrambler Nightshift / Scrambler Icon Dark, Type 3K, from model year 2021-
Item No. 06-3K-MCK35

€249.00 gross

35kW Restriction Kit for Ducati Scrambler 1100 Pro and Sport Pro, 1K from 2020
35kW Restriction Kit for Ducati Scrambler 1100 Pro and Sport Pro, 1K from 2020
Item No. 06-1KDUCATI-MCK35

€249.00 gross

35kW Restriction Kit for Yamaha Tracer 700, Type RM30 from Model Year 2020-
35kW Restriction Kit for Yamaha Tracer 700, Type RM30 from Model Year 2020-
Item No. 05-RM30-MCK35

€249.00 gross

alpha Technik 'Power+Eco' Restriction Kit 45km/h >to> 25km/h for Aprilia SR50R
alpha Technik 'Power+Eco' Restriction Kit 45km/h >to> 25km/h for Aprilia SR50R
Item No. 06-VF-M75

€219.00 gross

alpha Technik 11 kW Restriction Kit for Aprilia SX125 / RX125, SX
alpha Technik 11 kW Restriction Kit for Aprilia SX125 / RX125, SX
Item No. 06-SX-K15

€120.00 gross

alpha Technik 11 kW Restriction Kit for Cagiva W8, Type 9PE
alpha Technik 11 kW Restriction Kit for Cagiva W8, Type 9PE
Item No. B6-9PE-K11

€79.00 gross

alpha Technik 11 kW Restriction Kit for Honda CB125T, CB125T
alpha Technik 11 kW Restriction Kit for Honda CB125T, CB125T
Item No. B2-CB125T-K11

€79.00 gross

alpha Technik 11 kW Restriction Kit for Yamaha TDR125, 4GW
alpha Technik 11 kW Restriction Kit for Yamaha TDR125, 4GW
Item No. 05-4GW-K11

€184.00 gross

power, performance modifications for motorcycles are the origin of alpha Technik. Master mechanic Josef Hofmann and graduate engineer Josef Meier tinkered with the same idea in 1986: to reduce motorcycles to be licence-compliant or to bring them to their full power, performance. Both were successful and developed almost the same product. They met at the TÜV and have been working together successfully ever since!

Proudly holding your A2 motorcycle licence, you've seen your dream motorcycle at the dealer, distributor - it HAS to be this bike! The small catch: the standard power output is too high for the progressive licence. But with alpha Technik power, performance reductions to 25kw or 35 kW, your motorcycle dream becomes a reality instantly. Conversions from alpha Technik impress with their simple installation, detailed instructions and fast delivery service.

The restrictor kits from alpha Technik can bring many desired models to the required power, performance of 35kW. A lot of know-how goes into the development of a power, performance reduction. Key factors must be considered: on the one hand, there are the legal regulations, such as exhaust, noise and power, performance measurements according to the latest EC directive. On the other hand, there is the need to maintain optimal rideability and smooth power, performance delivery as unchanged as possible.

These restrictions are in high demand as they allow for a more favourable insurance classification. Vehicles that only slightly exceed the respective power, performance limit by a few kW are ideal for this.

From the very beginning, alpha Technik has shaped the development of power, performance modifications for the new Euro 4 and Euro 5 vehicles in accordance with current guidelines. Since the launch of the protected MCR restrictor modules in 2016, we have been offering reliable technology and tested quality at the highest level for a favourable price.


The restrictor kits from alpha Technik are available with parts certificates and technical support, and the range is constantly being expanded.

Frequently asked questions

The power, performance of a motorcycle can be measured at different points, which is why the stated PS figures can vary. Engine power (crankshaft) is the power, performance directly at the engine without losses through the transmission, chain, etc. Manufacturers usually state this power, performance. For wheel power (rear wheel power), the power, performance that actually reaches the rear wheel is measured on a power, performance dynamometer. Depending on the motorcycle, around 8–15% can be lost here through the transmission, chain, clutch, etc. On a rolling road dynamometer, the rear wheel runs on a roller, and the speed and acceleration of the roller are measured. From this, torque and power, performance are calculated, so in simplified terms: power, performance = torque × speed. (More precisely: power, performance = torque x angle velocity = torque x 2 x PI x speed). This is why a motorcycle can have more PS despite lower torque at high speed.

35 kW corresponds to about 48 PS: this is the maximum power, performance for the European A2 driving licence. There are two types of motorcycles with 35 kW: those with 35 kW from the factory and larger motorcycles that are restricted to 35 kW. Examples with around 35 kW from the factory include the Kawasaki Ninja 500, Honda CB500F, Yamaha MT-03, KTM 390 Duke or the Honda CBR500R. Many more powerful bikes can be restricted to 35 kW, as long as their unrestricted power does not exceed 70 kW. Typical examples: Yamaha MT-07, Kawasaki Z650, Honda CB650R, Suzuki SV650 or the Aprilia RS 660. This is where alpha Technik's restrictor kits come into play: many desired models can be brought to the required power, performance of 35kW! However, for holders of the current A2 licence class, special conditions apply: the power, performance-to-weight ratio of 0.2 kW/kg and double the original power output of the standard vehicle must not be exceeded.

If a motorcycle loses power, performance at full throttle, there are several typical causes. The crucial thing is how the loss of power, performance feels: does it stutter? Does it fail to rev up? Does the power, performance cut out suddenly? Does the motorcycle only lose power, performance at high speed or at any time? Common causes include issues with the fuel supply, e.g. a clogged fuel filter, a weak gas pump, dirty injectors, or a blocked fuel tank vent. In this case, the motorcycle runs normally at low revs, but the engine is "starved" at full throttle. If the air filter is very dirty, the intake is blocked, or a sports filter is incorrectly installed, the engine doesn't get enough air. With ignition problems (e.g. old spark plugs, defect ignition coils, misfires under load), you often notice this as juddering, backfiring, or loss of power, performance at high speed. Malfunctions in electronics/sensors, exhaust problems, or a slipping clutch can also lead to this issue. A restricted motorcycle (e.g. by electronic limitation, throttle stop, or speed limiter) can feel "artificially choked" at full throttle. You can find high-quality restrictor kits for many motorcycles and scooters in our shop at alphatechnik.de!

A current MotoGP motorcycle has approximately 220–300+ PS, which is about 160–220 kW - although hardly any team officially publishes the exact figures. In addition, there is a minimum weight of only about 157 kg, a top speed of over 360 km/h, extreme aerodynamics, state-of-the-art carbon brakes, and much more. For comparison, a typical A2 motorcycle has 35 kW / 48 PS, and a powerful 1000cc supersport bike has about 200 PS. Since the power, performance in MotoGP is significantly higher with much less weight, MotoGP bikes can accelerate extremely: they reach 0–100 km/h in about 2.5 seconds and can still achieve enormous acceleration well over 200 km/h.

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