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4-BOLT CHAIN RINGS
Rennen Sprockets are precision machined
from aircraft quality 7075-T6 Aluminum ( 83%
stronger than 6061) and polished to a beautiful
luster or available in Stealth Black, offering the
highest performance at the right price. Rennen
Chainrings are 3/16” thick and are made to take
the abuse of the BMX Track or a east coast
muddy rocky SS ride. Only Rennen Sprockets
offer a single speed specific tooth profile which
have been designed to extend tooth life. At 2.8oz
(79 grams, 38T) this makes Rennen Chainrings
one of the lightest on the market.
Black
Red
Blue
Polished List
91-5145 34
$39.95
91-5145 35
39.95
91-5145 36 91-5147 36 91-5148 36 91-5144 36 39.95
91-5145 37 91-5147 37 91-5148 37 91-5144 37 39.95
91-5145 38 91-5147 38 91-5148 38 91-5144 38 39.95
91-5145 39 91-5147 39 91-5148 39 91-5144 39 39.95
91-5145 40 91-5147 40 91-5148 40 91-5144 40 39.95
91-5145 41 91-5147 41 91-5148 41 91-5144 41 39.95
91-5145 42 91-5147 42 91-5148 42 91-5144 42 39.95
91-5145 43 91-5147 43 91-5148 43 91-5144 43 39.95
91-5145 44 91-5147 44 91-5148 44 91-5144 44 39.95
91-5145 45 91-5147 45 91-5148 45 91-5144 45 39.95
91-5145 46 91-5147 46 91-5148 46 91-5144 46 39.95
91-5145 47
39.95
91-5145 48
39.95
91-5145 50
39.95
4-BOLT THREADED
CHAIN RINGS
Rennen was the first to introduce Integrated
Chainring bolt nuts on our 110mm BCD chairings,
Now you can get the same great innovation for
our 104BCD 4 bolts. With our newest Chainring
innovation you will never have to use a chainring
wrench again. We have machined into the gears
the internal Threads increasing accuracy and
eliminating the frustration.
Black
List
91-5140 37 $44.95
91-5140 38 44.95
91-5140 39 44.95
91-5140 40 44.95
91-5140 41 44.95
91-5140 42 44.95
91-5140 43 44.95
91-5140 44 44.95
91-5140 45 44.95
91-5140 46
44.95
4-BOLT DECIMAL
CHAIN RINGS
Rennen Decimal Gearing is a breakthrough in
gearing technology. We have developed Special
Engineered Tooth profiles that allow us to
manipulate the size of a existing gearing to make
it slightly harder or easier depending on your
needs for the track. Changing your gearing by
Fractions of a tooth is now possible.
Size Decimal .1 Decimal .2 Decimal .7 Decimal .8 Decimal .9
36
91-5145 361 91-5145 362 91-5145 367 91-5145 368 91-5145 369
37
91-5145 371 91-5145 372 91-5145 377 91-5145 378 91-5145 379
38
91-5145 381 91-5145 382 91-5145 387 91-5145 388 91-5145 389
39
91-5145 391 91-5145 392 91-5145 397 91-5145 398 91-5145 399
40
91-5145 401 91-5145 402 91-5145 407 91-5145 408 91-5145 409
41
91-5145 411 91-5145 412 91-5145 417 91-5145 418 91-5145 419
42
91-5145 421 91-5145 422 91-5145 427 91-5145 428 91-5145 429
43
91-5145 431 91-5145 432 91-5145 437 91-5145 438 91-5145 439
44
91-5145 441 91-5145 442 91-5145 447 91-5145 448 91-5145 449
45
91-5145 451 91-5145 452 91-5145 457 91-5145 458 91-5145 459
46
91-5145 461 91-5145 462 91-5145 467 91-5145 468 91-5145 469
47
91-5145 471 91-5145 472 91-5145 477 91-5145 478 91-5145 479
CHAIN RINGS & PARTS
RACEWEAR
GLOVES
FOOTWEAR
HELMETS
HELMETACC.
EYEWEAR
PROTECTIVE
WEAR
CASUALWEAR
GEARBAGS
HYDRATION
ACCESSORIES
FRAMES&BIKES
FORKS
HEADSETS
STEMS
HANDLEBARS
GRIPS
SHIFTING
BRAKING
LIGHTING
TIRES&TUBES
WHEELS&RIMS
HUBS/CHAINS&
PARTS
CHAINRINGS&
PARTS
PEDALS
CRANKSETS
BOTTOM
BRACKETS
SEATS/POSTS&
CLAMPS
PLATES&
NUMBERS
SECURITY
CHEMICALS
TOOLS
PROMOTIONAL
INDEX
Phone: 1-800-999-3388 / 1-877-359-2946