what do you think of these?

[Cactus Jack]

okay thanks man. I seen these bikes kind of off the mill ebay stuff, but liffan motor and that, liking the look of the 10inch wheel and the swinger looks ok, might be able to put usd forks on it from a mate off his thumpstar pro, mabye upgrade back shock. the frame looks week but im no seth enslow

eBay Australia: 125cc THUMPSTAR MOTORBIKE 125 DIRT BIKE MOTOR PIT C RED (item 180128223497, end time 10-Jun-07 18:15:44 AEST)

The second bike is a LOT better than the first - better motor , wheels , discs , forks , swingarm .

The best bet is to build up your own bike from scratch : Start with :

1) a chromo twin pipe frame with cradle and chromo pegbar with decent pegs , brake lever and chain roller plus tapered roller steering bearings and SEALS .

2) decent swingarm

3) kick in gear motor of your choice with manifold and carb of your choice

4) AS-O2 forks

5) billet hub wheels with tyres of your choice & rim locks - high quality chain and sprockets .

6) Fast Ace or DNM rear shock with adjustable rebound and compression damping .

7) decent performance exhaust of your choice

8) Plastics , seat and tank of your choice .

9) Pro Taper bars with decent throttle , levers , cables and grips .

10) decent brake system with decent looking discs .

11) and the MAIN thing - decent high tensile bolts (GRADE 8) with nyloc nuts and spring washers where necessary . Most chinese bikes come with bolts that have the wrong length shanks on them - especially for the shock mounts - you want the shank part of the bolt to go all the way through to keep the bolt sitting square so that it doesn't stuff up the bushes in the shock or place side loading on the shaft which will cause the seals to blow or have a drastically shortened life .

It costs a bit more to build your own bike - but in the end - you get precisely what you want and you can take your time .

Every complete bike you buy that's offered by sellers will have good and bad points - they take from Peter to Pay Paul in order to be able to still make a profit whilst keeping the price down - but sooner or later - the buyer will pay for the short falls .

The main thing is to build a decent and SAFE rolling chassis first - even the BEST motor and parts are no good in a bad handling or unsafe chassis .

Incidentally 14/12 wheels make the bike handle and track far superiorly to a wobbly and unsafe feeling 12/10 . A 10 inch rear wheel is ridiculous if you have a 120 and up motor !