The beginning

So I bought this folding bike off of eBay for about $150 shipped. Its a Taiwanese cheaply made bike called a Zensx. Most of the components are crap. So I began taking off items, and making tweaks.

When I first got it, there was definitely a tune up needed. The brakes rubbed, some of the bolts were loose, the rear tire wasnt seated on the rim, etc.

I made the tune ups and went for a short ride around my house.

What I noticed is that the bike didnt really fit me. I am about 6'3" and it just didnt feel right.

So I began making some tweaks.
First, I removed the quick release lever on the seatpost and replaced with a metric nylock nut to curb thievery.

Second, I went down to my local bike co-op and bought a used handlebar and 150mm stem for $20 total. I cut down the headpost below the binder area and instead am able to use this 1 1/8 threaded stem in its place. This is great, because otherwise, I couldnt get the handlebars low enough. Also, with the 150mm stem it puts me into a much more comfortable position. I dont like having my handlebars above my saddle.









Third, I replaced the cheap cranks with a set of Shimano 600 172.5mm ones. The stock cranks were all steel and only 150mm long which is way too short for me. I added a 52 tooth chainring to the 600's. While changing cranks, I noticed the BB barely spun. I loosened the left cup and then it spun very smoothly.

Fourth, began removing misc items such as the kickstand and rear derailleur guard.

Fifth, the front brake was a piece of crap. I got a cheap steel BMX style caliper brake from the Bike co-op for $5. The "new" brake was much more sturdy and even lighter than the original. Plus, I found a pair of brake pads that were much better than stock ones they replaced.







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