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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Top Speed
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335
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119K
DAMIEN1307
DAMIEN1307
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Re-jetting Your Carb, As Easy As 1,2,3 ( quarkdude )
2 3 4
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38
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47K
quarkdude
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preventing power loss
2 3 4
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38
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29K
Robert41
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jpilot's Gear Ratio Calculator -
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4
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17K
CrazyDan
CrazyDan
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Dellorto carby manual
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2
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13K
Deleted member 12676
D
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Dyno testing 'performance mods'
127 128 129
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1K
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70K
WillitBoost
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shawnshank
Who has the fastest top speed?
39 40 41
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400
Views
113K
CrazyDan
CrazyDan
HumanPerson
Stinger Length?
37 38 39
Replies
381
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41K
HumanPerson
HumanPerson
C
how do you go about getting in the over 50 mph club.
29 30 31
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308
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36K
Lukesky36
Lukesky36
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Quarkdude's bike with Boost Bottle installed ( PICS )
18 19 20
Replies
198
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88K
haytom
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D
make your own torque pipe
17 18 19
Replies
187
Views
43K
Frankenstein
Frankenstein
konix shiwa
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this top end got skills !
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Replies
140
Views
22K
Steve Best
Steve Best
5
Using the Nu Vinci hub?
12 13 14
Replies
130
Views
32K
sjacome
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6blueoval9
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"PureStock" Zeda80 build.
11 12 13
Replies
122
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10K
Stoneman
Stoneman
intrepid
Cheap upgrades/things to do to my bike?
10 11 12
Replies
112
Views
24K
Jacko1
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Jayraye39
Ram air does indeed effect pressure inside the case and contributes to top speed.
9 10 11
Replies
107
Views
12K
Freddy Snottgrass
Freddy Snottgrass
M
Nice Jackshaft Idea
9 10 11
Replies
104
Views
62K
KCvale
KCvale
D
Finding Performance By Accident
9 10 11
Replies
104
Views
36K
VTBikeman
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E
Engine Porting - Gases out, Fuel Air in
9 10 11
Replies
101
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50K
210061741
2
INTP_ty
Huesheng 53cc 50 mph target
9 10 11
Replies
101
Views
10K
darwin
darwin
J
Engine Horsepower?
8 9 10
Replies
93
Views
17K
Mountainman
Mountainman
D
Reed valve with extended intake
8 9 10
Replies
92
Views
22K
Fabian
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A
2-stroke/single-speed...operation for topend performance?
7 8 9
Replies
89
Views
17K
augidog
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Stoneman
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Port timing
7 8 9
Replies
87
Views
14K
James addison
J
D
Squish band
7 8 9
Replies
85
Views
27K
Bike_Builder
Bike_Builder
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