Build number three

wildemere

New Member
Feb 12, 2008
269
0
0
Newcastle
This is my latest effort

Features include home made 40 tooth rear sprocket, a BMX chain, no tensioner, and high pressure tires.

The tires are rated for 90psi, running them at 75psi.

The 40 tooth sprocket used to be on the chain ring!

Its just a cheap old mountain bike fitted with 27" wheels.

vmax as of yesterday was 35 mph

Would probably go near 40 but I fear a meltdown, seizure or explosion.

A lockup at 40 would not be pretty.
 

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wildemere

New Member
Feb 12, 2008
269
0
0
Newcastle
This bike is running a 10t front and a 40t rear.

The wheels are 27.5" diameter

6000 rpm calculates to 30mph

But it feels like 50 !
 

RedB66

Active Member
Dec 28, 2007
1,023
1
38
Sunshine State
I like it! I like it! I'm building one with a similar frame. Did you change out the drive sprocket or does the BMX chain fit the existing sprocket?
 
Jun 25, 2008
455
0
0
This is my latest effort

Features include home made 40 tooth rear sprocket, a BMX chain, no tensioner, and high pressure tires.

The tires are rated for 90psi, running them at 75psi.

The 40 tooth sprocket used to be on the chain ring!

Its just a cheap old mountain bike fitted with 27" wheels.

vmax as of yesterday was 35 mph

Would probably go near 40 but I fear a meltdown, seizure or explosion.

A lockup at 40 would not be pretty.
I think its beauty really is in it simplicity. I have longed to buy a roadster frame which i think yours is.

This is my aim.

Here's an old british trumph roadster Triumph Roadster Bicycle - Alternative Transport?