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Heads and Cylinders
All about your porting, compression, rings, cylinder and piston modifications to your bicycles engine
Forums
Motorized Bicycle Mechanical Components
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Jet 66/80cc motor only from gasbike.net or kings motor bikes
jolfstn
Aug 12, 2017
Replies
2
Views
1,040
Aug 12, 2017
jolfstn
J
Slant head orientation
Jellyfish420
Jul 5, 2017
Replies
3
Views
1,525
Jul 6, 2017
xseler
D
Rings
doomedgame
Jun 23, 2017
Replies
3
Views
1,100
Jun 24, 2017
crassius
D
Modded pistons
doomedgame
Jun 18, 2017
Replies
2
Views
1,086
Jun 22, 2017
doomedgame
D
F
Jets
Flathead
Nov 27, 2016
Replies
5
Views
3,797
Jun 4, 2017
Greg58
Hybrid cylinder engine options
mobike91
May 20, 2017
Replies
1
Views
1,637
May 24, 2017
Dan
New high comp head!
Cylon
Apr 14, 2017
Replies
13
Views
3,428
May 16, 2017
Cylon
High comp head.
Cylon
Apr 14, 2017
Replies
1
Views
1,066
May 15, 2017
mobike91
S
49cc High compression head
shiveralex
Apr 16, 2017
Replies
4
Views
3,962
Apr 24, 2017
Tyler6357
B
Bad Top End?
BikerMatt
Jul 17, 2016
Replies
11
Views
3,334
Apr 4, 2017
Slogger
S
D
Mixing cylinder bodies?
dale_m
Mar 15, 2017
Replies
2
Views
2,237
Mar 16, 2017
sbest
D
headbolts with no nuts works great!!
daveet6666
Feb 12, 2017
Replies
3
Views
1,603
Feb 19, 2017
crassius
T
Compression
thumper68
Jan 17, 2017
Replies
2
Views
3,348
Jan 18, 2017
thumper68
T
something to think about
crassius
Nov 17, 2016
Replies
2
Views
1,965
Nov 24, 2016
crassius
S
How to clean
SpeedingTurtle
Oct 26, 2016
Replies
1
Views
2,333
Oct 26, 2016
crassius
K
ZAE 50 connecting Rod
Knuckledragger
Oct 24, 2014
Replies
13
Views
12,782
Oct 20, 2016
granto102
G
V
Port Matching Questions And A Good Word About A Supplier
vhatley
Oct 15, 2016
Replies
0
Views
2,038
Oct 15, 2016
vhatley
V
F
Headbolts
Flathead
Dec 29, 2015
Replies
13
Views
7,810
Sep 11, 2016
mogollonmonster
F
Piston
Flathead
Jan 4, 2016
Replies
7
Views
3,525
Aug 28, 2016
sbest
S
34 tooth swap, down hill, new personal best!
StevenMain
Aug 12, 2016
2
3
Replies
43
Views
8,144
Aug 22, 2016
StevenMain
S
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Motorized Bicycle Mechanical Components
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