Derestriction

[Arcane1729]

You can derestrict a 50cc moped to go more than the 30mph limit for 16 year olds. Is there some way to do the same for a 125cc moped?
I can only do 65mph. For a lot of the A-Roads I've been on you can usually go at the national speed limit- I find I'm always being overtaken by most cars in these places- and for the slowest cars theyre always on my tail even when I'm going full throttle. This is quite embarassing . Im seriously regretting not getting a nice 125 learner bike like the Honda CBR125 or the Aprilia RS 125 which does 96

[Fisty]

[Arcane1729]

[NJD]

General bike chat?

If you're after a bike that can achieve NSL + more easily and without being at the top end and struggling of its power than getting something with more power than a 125 would be the way to go.

Be happy with what you've got. I own a 125 that can't achieve NSL speeds and therefore would be a hazard should I attempt to ride on such a road, I wouldn't even trust trying it in lane 1 of a NSL.

[Fin]

Pretty sure one could do 96 with some good tuning, had 86 on my nsr once, most of time could only do 80. I'm pretty sure I hit over 90 on it once too but was way too scared to look down. was trying to keep up with someone on a big bike going down the perfect hill, the cars were pulling over to let me pass thinking we were riding together having him pass already.

[Arcane1729]

[Fin]

[Polarbear]

[Ste]

An indicated 96 isn't unreasonable.

Riding a derestricted 125 with only a CBT isn't legit.

[Jmh600]

To be honest, at 65 you're only 5mph below the fastest national speed limit (dual carriageway).

If you mess with it, and really don't know what you're doing, you will break it. A 125cc bike/moped is brilliant for learning, hence why they're not fast! You could very easily kill yourself at 65.

I really wouldn't want to do 90+ on an Aprillia or like the like...... Lightweight and the skinniest of tyres must make it interesting.

Ride the moped, gain experience, go do your A2 when you're 19 and buy a big bike.

Joe
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Jmhmotorcycles

[Taught2BCauti...]

In order to de-restrict something, you have to work out what is restricting it in the first place.

Some bikes have no restricting devices at all - they are simply working at their design limits, but for example, the Varadero 125, has several restrictions added:

1. A rubber bung and a perforated metal plate in the air box, to restrict air flow.
2. A 'choke' in the front exhaust downpipe, and a reduced diameter rear downpipe.
3. Different fuelling setup on the rear carb (or different mapping for the rear injector).
4. A small diameter reduction in the inlet rubbers.
5. A rev limiter on the engine that reduces the top speed to roughly 70mph (with standard 14/44 final drive gearing).
6. Later models also have O2 sensors that restrict exhaust gas flow.

I needed to make a few minor adjustments to mine, just to make it safe to ride at lower speeds, and I don't know or care what the top speed is.

If I need to get somewhere sooner, I just start out earlier
____________________
Honda Varadero XL125(V8)
www.TheFutureIsHere.eu

[Rogerborg]

[Ziggy81scott]

Years ago I had a Honda mt50 I spent loads of time making it go faster and had great fun doing it as well as learning about the engine.
The result was a top speed of 70mph however it kept heat ceasing and needed rebuilding every weekend..... So it's not all good, I'd get yourself a 125 asap and do you're full test cus in my experience 50s and 125s will never be quick enough and tuning etc never works out well on these little bikes.
I know very well how frustrating it can be and sympathise with you