Readspeed 'Apollo' Scomadi CDI
Readspeed ‘Apollo’ Scomadi CDI
Readpseed Scomadi gear-up kit
Readpseed Scomadi gear-up kit

Here we have the holy grail for Scomadi 125 tuners. The air-cooled 125 is likely to be a neglected beast nowadays given the arrival of the water-cooled Scomadi 200, but that ignores two facts about the TL125:

  1. It’s learner legal
  2. At £2,570 it’s much cheaper than a 200

Sadly the TL125 is no rocketship, however upgrades are starting to appear on the market. Many of those who’ve assumed that this is just another GY6 Chinese engine have been disappointed to find that this is not just a generic engine and something specific was required.

Readspeed were the first company to successfully develop a cylinder kit for it. They currently offer a 170cc upgrade but one core problem remains. If you boost the capacity you can make it accelerate much better, but it simply won’t go any faster on top speed unless you remove the rev limiter, or preferably, raise the gearing. Hey presto, Jerome is currently in the process of doing both of those things…

Due in the next two weeks is a gear kit which is aimed at adding another 10mph to the potential top speed of a kitted engine – so more like 70mph than 60mph depending on rider weight etc.

The second stage of development is an upgraded, high-voltage ‘Apollo’ CDI with various maps selected by rotary switch, rather like their Vespa/Lambretta 8-stage version. According to Jerome the spark output is strong enough for the spark to jump a gap like a taser. High-power ignitions allow you to feed more fuel to an engine and still get a full burn.

Currently Readspeed are still working on the ignition maps for the Apollo CDI but production is expected to start in the next couple of months.

The Gauntlet

One of Readspeed’s claims is that they can tune a Scomadi 125 engine to be faster and more powerful than the Scomadi 200, so we’ve issued them a SLUKin challenge to prove it.

We aren’t restricting how they achieve this, so there is the possibility of longer-stroke and even more capacity in addition to the gear kit and CDI. In fact Jerome reckons he’s got a 4-valve cylinder head that will fit…

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