80, 100, of 125???

I would get the KX/RM100 if i were you, its directly between an 80 and a 125 and can kick serious butt on the track or trail. The only thing better than a KX/RM is a KTM 105 SX. The best larger displacement mini, imo, would definitly be the new KTM 105 SX. Those are supposed to do some serious damage to the competition! The new SX is definitly worth taking a good hard look at. They are both roughly $3500 otd i think. That would leave you money for gear.

105 SX MODELS SPORTMINICYCLES

Engine

Engine Type single cylinder, 2-stroke
Displacement (cc) 84.93
Bore x stroke (mm) 47 x 48.95
Starter Kick-starter
Carburetor Keihin PWK 28
Control -
Engine lubrication mixture lubrication
Primary drive 19:66
Final drive chain 1/2 x 5/16" 124 R
Cooling liquid cooled
Clutch wet multi-disc clutch, operated hydraulically
Ignition Moric 2M1

Chassis

Frame chromium molybdenum central-type frame
Subframe Aluminum
Handlebar Alu D22
Front suspension WP USD 43
Rear suspension WP PDS monoshock
Suspension travel front / rear 275/(287/300) mm
Front brake disc brake Ø 220 mm
Rear brake disc brake Ø 200 mm
Front / rear rim 1,6 x 19"; 1,85 x 16"
Front / rear tire 70/100-19"; 90/100-16"
Transmission ratio 14:49
Main silencer Aluminum
Steering head angle 24°
Wheel caster 95 mm
Wheel base 1278 mm
Ground clearance (unloaded) 430 mm
Seat height 900 mm (adjustable)
Fuel capacity approx. 5 liters
Weight (ready to race, no fuel) approx. 68 kgs


Kawasaki KX100 same as Suzuki RM100


Engine: Two-stroke single with KIPS®

Displacement: 99cc

Bore x stroke: 52.5 x 45.8mm

Cooling: Liquid

Carburetion: Keihin PWK28

Induction: Two-petal reed valve

Compression ratio: 9.6:1 (low speed) – 8.8:1 (high speed)

Ignition: Digital CDI

Transmission: Six-speed

Frame: High-tensile steel perimeter design with subframe member

Rake / trail: 27° / 4.1 in.

Suspension type, front: 36mm inverted telescopic cartridge fork

Suspension adjustments, front: 18-way compression damping

Suspension type, rear: UNI-TRAK® single-shock system

Suspension adjustments, rear: Spring preload, 4-way compression and 18-way rebound damping

Wheel travel, front: 10.8 in.

Wheel travel, rear: 10.8 in.

Tire, front: 70/100 x 19

Tire, rear: 90/100 x 16

Brakes, front / rear: Hydraulic disc

Overall length: 75.2 in.

Overall width: 28.9 in.

Overall height: 43.5 in.

Ground clearance: 15.0 in.

Seat height: 34.3 in.

Dry weight: 149.9 lbs.

Fuel capacity: 1.5 gal.

Wheelbase: 50.8 in.

Even if i just wish that i owned one, i am a self acclaimed Orange Advocate. ; P
KTMs Rule!

I would stay away from the KTM 105 since it is such a new model until they can prove themselves in reliability. I have seen a handful pushed back to the pits in the middle of a race. The KX/RM 100 has been around for a while now and is a proven solid bike. At your height and weight and experience, I think a KX/RM 100 would be great! Plus if you want to save some cash, you can probably fine a used KX 100 (like a 98-02) for less than $2,000.

Try to get a ride on a 100 and maybe a lowered 125, see which one has the most usable power the you can handle, and even if it isnt orange im sure you'll be happy with what you decide. :)

a older cr 125 is pretty tame, and if you are like most 95 pound kids, you are probably up to 110 by the time you read this. 85 no way. 100 great, but you'll wind up selling it. If you have 2000-3750 you want something that will last. It's true that a 125 is a lotta bike for a light kid, but if you want something to keep for a few years, the 100 will probably be too small.

I guess i wasnt really thinkin about the whole growth sprut/puberty thing, lol. It will depend on exactly how much your gonna be growing and how long you want to keep the bike.

you might as well buy a 125