Performance Mods

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Motorized bicycle performance modifications. Carbs, porting, exhausts, expansion chambers, reed valves, boost bottles and everything to make your motorized bicycle go really fast.
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Crank-Drive Subaru Build
2 3 4
Replies
33
Views
7K
srdavo
srdavo
G
my new bike
Replies
0
Views
978
gothicguy64
G
C
Crazy contraption, Crazy Operator
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2
Views
1K
speedster huffy
S
H
thoughts on nitrous
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5
Views
3K
HeadSmess
HeadSmess
R
expansion chamber or dirt/pit bike exhaust muffler??
Replies
4
Views
3K
HeadSmess
HeadSmess
S
High Performance Intake Manifold
2
Replies
18
Views
6K
impression
I
I
Modifying the exhaust (56k no) ( welding included)
Replies
3
Views
2K
impression
I
DanielMaia
66cc engine tear down, setting it for high performance setup
2 3 4
Replies
36
Views
25K
shell shock
shell shock
F
How about this expansion pipe
Replies
6
Views
2K
FelipeCobu
F
steelfan41
  • Poll
Carb or Expansion Chamber?
Replies
7
Views
1K
steelfan41
steelfan41
G
66 er's
2
Replies
10
Views
4K
Chalo
C
V 35
Wanted ... Throttle Advice Stocker = junk
Replies
4
Views
2K
Gene
G
D
  • Locked
DIY Expansion Chamber
Replies
0
Views
14K
Deleted member 12676
D
C
  • Locked
How do you do the cut muffler mod?
Replies
6
Views
18K
Deleted member 12676
D
N
boost bottles: yay or nay?
4 5 6
Replies
53
Views
10K
adrian101
adrian101
Simon_A
Project Polini
2 3
Replies
20
Views
9K
datsun610
D
D
Pipe mods for low end power
Replies
4
Views
3K
Deleted member 12676
D
steelfan41
Expansion Chamber vs Poo Poo Pipe
Replies
4
Views
3K
adrian101
adrian101
proctor-nashua
this is me wishing i was in cal at willow spring race
Replies
0
Views
1K
proctor-nashua
proctor-nashua
G
Inches???????????
Replies
3
Views
2K
Deleted member 12676
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