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Redline Serial Numbers

#1 2018-06-26 3:57pm

robk131313
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Redline Serial Numbers

Year/Model

1970's

Redline Squareback First production bike was serial number 100. A low number bike would be early 1974.
By the 500-600 range somewhere begin the 1975's.
1974-1975 Front gusset had no hole
1976-1977 Front gusset had two holes
1978 and 1979 MX-II - 4130 frame and fork. Used the Squareback front end and the now familiar MX-II rear end on early models.
1978 and 1979 Proline - 4130 frame and fork.

1980's

1980
1981 700 MX-II 4130 frame and down tube decals, Vbars and Redline stem, Suntour VX alloy 3 piece cranks.
1981 600 MX-II 4130 frame and down tube decals, Vbars and Redline stem. Only difference from the 700 is the 1 piece
cranks.
1981 520 MX-II 4130 frame and down tube decals, Vbars but cheapo slant stem and Coaster brake Tuff Wheels.
All three came in your choice of Red, White or Blue.
1981
1981 700 MX-II 4130 frame and down tube decals, Vbars and Redline stem. Sugino Maxy-Cross alloy cranks, Suntour seat clamp and hubs, National skinwalls and KKT alloy pedals.
1981 600 MX-II 4130 frame and down tube decals, same as 700 but came with Sugino 4130 1 piece cranks and KKT steel pedals.
1981 520 unknown specs.
All three came in only Blue, Red, black and white. Chrome would come to the lineup in spring 1981.
Late 81/ 82

The new bikes appear in the Oct. 81 issue of BMXA. Since the advertisemnt had to be shot and submitted before print deadline it probably means the bikes were out at the end of summer 81.
They feature the long huge Redline logo in red with white or black trim. As in the earlier years no decal identifying the bikes as 600 or 700 etc is on the bike yet. The new blocky RL logo is on the seat mast sides and headtube.
81/82 PL-20 Carrera uses a Proline frame, flight cranks and still using Vbars.
Available only in Chrome at first with red or blue parts packages.
81/82 700 Now using a first generation MX-III frame which is really a MX-II. Sugino Maxy-Cross cranks. Everything else same for 600.
81/82 600 Now using a first generation MX-III frame which is really a MX-II. 4130 1 piece cranks.
Both available in Chrome, Red, White, Blue or Black.
MX-II vs. Series-III
Early MX-III were the designation for complete MX-IIs from Japan. The first MX-III frames confused people so Redline also called them Series 3, ST (as in ST-20), Series Three etc.
Late 1982 the first Series-III based bikes rolled out the 600a and 700. Here is how to tell if you have a MX-II or Series-III based frame.  Bottom Bracket height (center of BB to ground) MX-II, 11 3/8" . MX-III, 10 3/4" Remember wear and tear on the tires and tire design will affect the BB height slighty.
MX-II Top Tube (TT) is 18"
MX-III Top Tube (TT) is 18 3/4"
MX-II weighs @ 4 lbs 8 ounces
Series-III weighs @ 4 lbs 1 ounce (Dont forget to weigh clean with no headset or BB cups in.)
Series-III have larger then normal drilled out holes on the BB (4 holes) and HT (2 holes), which are covered up by the main tubes.
1983
'83 versions of the MX-III bikes were set to arrive in showrooms, October 1982.
Was the first year of the Redline MX-III. Well sorta. Till then all MX 3 series used a MX2 frame according to an interview by Len Weed from BMX Action Dec. 82. Linn Kastan stated in 1983 Redline debuted its first real MX-III. It came as a complete bike Models 700 and 600a and Frame set.
First year the complete bikes had the model (600a etc) on the frameset.
Specs. TT and DT outside diameter was 1 1/4." Forks 1". Wheelbase was around 36" BB height was 10 3/4".
1983 700 - 4130 came complete with Sugino Maxi-cross cranks and Redline stem and Vbars.
1983 600a - 4130 came complete with Sugino 1pc or Sugino GT 3 piece cranks, Mild steel Kusuki Vbar and Sugino alloy and 4130 stem.
Both available in Chrome only. Your choice of black or blue parts.
1984 and into 85
1984 500 A - 4130 Series III frame set (MX-III). Sugino 175 1 piece cranks. Red to Yellow fade decals.
Available in White or Chrome only. (Made in Taiwan)
1984 600 B - 4130 ST-20 (MX-III? ST as in Series Three as in MX-II?) 104A forks (A as in all weld instead of the three spot?).
Available in White or Chrome only.  Black with some grey background down tube decal with red Redline. ST-20 on seat tube and not 600b. Vbars and same pads as the 700P. Mostly black with some grey and red Redline written several times.
1984 700 P - 4130 Proline frame, same frame that the Carerra comes with. 101A Tapered forks.
Available in White or Chrome only. PL-20 on seat tube and not 700P. These use a Red to Yellow fade. Bike has 1 piece Sugino 175 cranks.
1985
1985 500 B - Tri Moly. 4130 front, mild steel rear triangle. MX-III type frame. Fully painted finish or all chrome. Econo stem.
Available in all Hazard Yellow (not partial Chrome like the 600 C) or Chrome.
1985 600 C - 4130 Front was painted or chrome, rear was chrome. MX-III frame. Forklifter stems. 1 piece cranks.
Available in Hazard Yellow, White or Chrome. Parts all black and chrome. Rear dropouts are gnurled. (Made in Taiwan)
1985 800 P - 4130 Proline frame and fork. Forklifter stems. 1 piece cranks.
Available in Turquoise/Chrome, Yellow/Chrome and White/Chrome
1986
1987
1987 400 C - Tri-Moly?
1987 600 CXL - Available in White, Red or Turquiose
1988
1988 400 C - 4130?, Available in Chrome, Inca Red, Jaguar Black, Kiwi and Mango. Series-III frame
1988 800 PXL - 4130, Available in Chrome, Inca Red and Jaguar Black. Proline 2 frame.
1989
1989 390 -
1989 400 C -
1989 400 D -
1989 700 EXL - Retro Inspired logos and Proline tapered type forks, 180mm 1 piece cranks.
Available in Red, Blue, Black and Chrome.
1989 800 PXL -

1990's

1990
Blue=Pacific Blue, Red=Rio Red, Yellow=Solar Yellow, and Gray=Carbon
Color was front end with Gray or Chrome the back end.
1990 Three (300) - 18th Anniversary model, uses a Series-III type frame.
1990 Three (390) - 18th Anniversary model, uses a Series-III type frame. MX-II type forks.
Available in Red/Gray, Blue/Gray, Yellow/Gray and Black/Chrome
1990 Four (400 EXL) - Series-III type frame. TRX Type, leading axle, dropout forks.
Available in Red/Gray, Blue/Gray, Yellow/Gray and Black/Chrome
1990 Seven (700SL) - Proline type frame.  Proline type forks.
Available in Red/Gray, Blue/Gray, Yellow/Gray and Black/Chrome.
1991
All Have commemorative sticker stating 1972-1991
1991 320 -
1991 420 - Available in Chrome, Red, Yellow or Blue.
1991 520 - Tri-moly frame. Tapered Proline 4130 forks.
Specs: TT-18 1/4", WB-35", BB-11 1/8", RE-15 1/2", TT OD 1 1/8", DT OD 1 1/4".
Available in Yellow/Gray, Blue/White, Red/Gray (or Chrome).
1991 720 SLX - Available in Yellow/Black, Red/Black, Blue/White (White or Black being the back end color)
1992
1992 Redline Platinum - 20th Anniversary Edition. Only 50 made. Browning front suspension.
1993
1993 RL 340 -
1993 RL 440 -
1993 RL 540 - 4130 frame/fork. Two tone paint and chrome finish.
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Serial Number

Early USA made bikes may have had a code like this:
RA = 81 Then run number is 5 digits.
RB = 82
RC = 83 etc...
**However bikes in the museum throw that formula in the trash** (I will leave it up for now. The second letter may mean something, but its not the formula people have been saying.
RA 04320 - 1982 Redline MX (Made in Japan, Redline Hotdog stamp)
RB XXXXX - 1982 Redline MX-II
RB 01382 - 1984 Redline 102b (May possibly be a 82 or 83) (Redline Hotdog stamp)
RB 01693 - 1982 Proline II (has No gusset behind seat, CS bridge)
RC 01878 - Unknown Year, (maybe 600a) MX-II or III (Redline Oval stamp)
RC 06430 - 1984 Redline 600b
RC 07870 - 1984 Redline MX III (ST-20), (has gusset behind seat, Redline Oval stamp)
RC 07631 - 1984 Redline 600b (Redline Oval stamp)
RC 09325 - 1984 Redline Proline (Redline Oval stamp, CS bridge)
RC 09858 - Unknown Year, Redline Proline (has NO gusset behind seat, Redline Oval stamp, CS bridge)
RC 13645 - 1984 Redline 700p
RE 00533 - 1985 Redline 800p
RH 00726 - 1983 Redline 600a (Redline Oval stamp, NO CS bridge)
RH 07118 - 1983 Redline 600a
RH 00250 - Unknown Year, Redline 102b
RI 0394X - Unknown Year, Redline MX-II or III (claims top tube is 17" but they only came in @18 and 18 3/4)
RI 05788 - Unknown Year, Redline MX-II or III
RJ 08247 - 1981 MX-III
RJ 00829 - Unknown Year, Model
RJ 02630 - Unknown Year, Model
RJ 03295 - Unknown Year, Model
RJ 05818 - 1980 MX-III (MX-III was a MX II frameset sold as a complete bike that came from Japan)

9 Digits

WA9F01870  (1999, June)
WN0C05414  (2000, March) Redline 340
WN0C07804  (2000, March) Redline 340
WV9G05080  (1999, July)
The third number appears to be the year in this case 1999. The letter that follows that may be the month.
This is speculation based on the bikes age.
Someone posted a RMCF80257. Perhaps the C was actually a 0, then it would fit in with the above structure more.
8 - 7 or 6 Digits year stamped
866814 1986 Redline 500c (Redline Oval stamp. Trimoly stamp)

8 Digits

8609340 1986, September, bike number 340. Or maybe a typo and it is supposed to be 8 digits.
85021290 1985 Redline 600c
85050047 1985 and 05 the month
92081262 1992 and 08 the month
92081370 1992 and 08 the month

6 Digits

Some bikes have the Oval Redline stamp and some dont.
Speculation is that if it has the stamp it is made overseas. That isn't confirmed.
118468 (No Info)
341200 (No Info)
346386 (No Info)
370904 (No Info)
373568 (No Info)
494904 (No Info)
496287 (No Info)
109891 1984/85 Redline Proline (700p or PL-20) Frameset

**It is my opinion that these bikes were simply stamped in order, with no date coding put into them. The lower the number the earlier it was made, starting in 1979. Some model years started earlier and this throws off the fluid look. Also some bike owners may confuse the year of the date it was originally purchased with the model year which in some cases could be different**
340790 1980 Redline Proline (PL-20)
341692 1978-80 Proline (has NO gusset behind seat, NO Redline stamp)
343277 1979 Redline MX-II (has NO gusset behind seat, NO Redline stamp)
348647 1982 Redline MX-II (600 or 700) Frameset.
349470 Unknown Year Redline MX-II or III
350291 1981 Redline Proline 2 (had NO gusset behind seat, and NO CS bridge)
350294 Unknown Year, Redline Proline
354065 Unknown Year, Redline MX-II
357485 Unknown Year, Redline Proline (NO CS bridge)
363127 Unknown Year, Redline Proline (Redline Oval stamp)
375830 Unknown Year, Redline Proline 2 frame (has gusset behind seat, CS bridge, Redline Oval stamp)
375996 1982 Redline Proline 2 (has the gusset behind seat, CS bridge, Redline Oval stamp)
499612 Unknown Year, Redline MX-III frame
502365 1984 Redline MX-III frame (has gusset behind seat, CS bridge, Redline Oval stamp)
502867 Unknown Year, Redline Proline (CS bridge)
505092 Unknown Year, Redline MX-III frame (has gusset behind seat, NO CS bridge, Redline Oval stamp)
507159 Unknown Year, Redline MX-III frame (has gusset behind seat, NO CS bridge, Redline Oval stamp)
510537 Unknown Year, Redline PL-24 (CS bridge)

5 Digits

08453 1978-79 Redline Proline.
15188 Unknown Year Redline Microline
Assorted Codes
Giant made
Giant made should have two separate code areas, 1 on each dropout.
G0684 (on one side) First two digits are month, last two digits are year.
4673620 (on the other dropout) Run number
G0684 4673620 Giant made, June 1984
G0684 5676717 Giant made, June 1984 1984 Redline MX-III (Redline,Hotdog stamp
----------------------------------
R88041521 - 1988 Redline Proline (800 PXL - April, 1988)
R87112584 - 1987 Redline (November, 1987)
----------------------------------
85 RL REO 03155 (1985, Redline, Built by Code, run number) ???
----------------------------------
DBSN 401Q7687  (Built by code, came with 401's, Q cause they look cool and run number) ???
Or did he write it down wrong was the Q actually a 0? That would work with the below bikes sequence.
DSRM 40110554 This bike is a survivor. Owner cant remember the exact year but it was 84/85ish. It is a white 500a.
The 500a used a MX-III frame. Well the owner thinks it may be an 84 and the code starts with 4 so maybe that was the year and the 01 is the actual month. the rest 10554 could be the run number.
DSRM 40555038 Only certain info is it is a MXII or III frame.
DJBM 4020463 Perhaps 4 is 1984 and 02 is for February.
**Sure looks like the 4 is for 84 and the 01,05 etc for the month, with the run number following.**
-----------------------------------
Third digit is last digit of year. The 4th digit is most likey the month of production.
IS7K0384 1997 Redline Cruiser (The bike seems to also have date codes on the seat tube and forks)
IS7J0211 1997 Redline 20
-----------------------------------
ACX0G0461 Unknown Cruiser code. 0 may be for 1990 and G for July.
-----------------------------------
ACR2K00### 1993 Redline RL340 (Serial number stamped on BB)
ACR3A00### 1993 Redline RL340 (Serial number stamped on BB)
ACR4J05213 1994 Redline Cruiser (Serial number stamped on BB, Redline Oval stamped)
ACR5B00094 1995 Redline Cruiser (Serial number stamped on BB, Redline Oval stamped)
RLW0050#### 1991 Redline RL320 (Serial Number is stamped on seat tube)
RMCF802527 Unkown Year, Redline RL 340 [1 1/8 head tube]
RMCH023215 Unknown Year, Redline RL 340
RMCH00287 Unknown Year, Redline RL 340 [1 Inch head tube] (since these two appear to be numbered same series but one has 1 less digit a error reading the serial numbers may have occured)
L90050069 1990 Redline Proline (700) (Full Chromoly stamped and Redline Oval stamped)

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#2 2018-08-18 9:26pm

jrkcfrank
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Re: Redline Serial Numbers

I got this from red line square back.  I'd like to dedicated to him Shaun was a red line Guru . He will be sadly missed but never forgotten .

https://s3.amazonaws.com/uploads.bmxmuseum.com/user-images/6393/20495b78f0b6f3.jpg

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#3 2018-08-18 10:32pm

robk131313
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Re: Redline Serial Numbers

cool

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#4 2019-04-06 6:45pm

Pathavlicek
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Re: Redline Serial Numbers

Was wondering what kind of serial number acx6h0006 would be classified as picked up bike a week ago it's a redline and I dont know a dam thing about it was hoping you could give me a hand finding g out would be greatly appreciated

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#5 2019-04-07 12:06am

Hobbes12
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Re: Redline Serial Numbers

Pathavlicek wrote:

Was wondering what kind of serial number acx6h0006 would be classified as picked up bike a week ago it's a redline and I dont know a dam thing about it was hoping you could give me a hand finding g out would be greatly appreciated

1996


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#6 2019-06-11 10:37am

Pwood
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Re: Redline Serial Numbers

I have a Red line proline serial RMCB604155 was told it was an 83 can any one confirm or at least give me an idea of the year?

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#7 2019-06-11 11:20pm

Hobbes12
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Re: Redline Serial Numbers

Pwood wrote:

I have a Red line proline serial RMCB604155 was told it was an 83 can any one confirm or at least give me an idea of the year?

Seems most likely it going to be a 1996...does it have brake posts on it?

Put up a Pic?


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#8 2019-06-11 11:41pm

affordablepmc
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Re: Redline Serial Numbers

cool


Looking for: Peregrine FSX-111 silver caliper, CW Fork with welded pegs. Peregrine Pro Fork, Peregrine crank set, Rear Peregrine Master white, Rear lavender Peregrine Master mag. Rear Peregrine HP48 mint to nos,Rear Pro Class IV white, 87 88 Skyway Street Beat, 401 175 single pinch "drive side".

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#9 2019-12-01 4:29pm

kscw10
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Re: Redline Serial Numbers

Hey man great post from years back...Finally had a chance to visit my old bike at my parent's house.  I have a pic and have also included the serial # RJ 08247.  Would love to know some of its provenance. Thanks!

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#10 2019-12-01 4:47pm

kscw10
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Re: Redline Serial Numbers

https://s3.amazonaws.com/uploads.bmxmuseum.com/user-images/268530/20191201_1631335de45f0a15.jpg
https://s3.amazonaws.com/uploads.bmxmuseum.com/user-images/268530/20191201_1630315de45f15ef.jpg

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#11 2019-12-01 5:02pm

Hobbes12
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Re: Redline Serial Numbers

kscw10 wrote:

Hey man great post from years back...Finally had a chance to visit my old bike at my parent's house.  I have a pic and have also included the serial # RJ 08247.  Would love to know some of its provenance. Thanks!

I added your SN to the list wink


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#12 2019-12-01 5:16pm

kscw10
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Re: Redline Serial Numbers

Cool thanks!  I got this for my 8th b-day in 1981 if that adds anything...Maxy-Cross cranks, stamped vbars, blue Araya wheels, Redline stem...all original minus pedals and rear tire.

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#13 2019-12-01 5:23pm

Hobbes12
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Re: Redline Serial Numbers

kscw10 wrote:

Cool thanks!  I got this for my 8th b-day in 1981 if that adds anything...Maxy-Cross cranks, stamped vbars, blue Araya wheels, Redline stem...all original minus pedals and rear tire.

That helps, so it was brand new when you got it?

We know it a 1980/1981...


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#14 2019-12-01 5:30pm

kscw10
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Re: Redline Serial Numbers

Yes bought new from a place now called Bicycle Connection in Cockeysville, MD...was called Cockeysville Cycle Center back in the day.  Purchased in ca. August 1981...I'm trying to find the original paperwork which I have seen before because my parents save everything.

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#15 2019-12-01 5:39pm

Hobbes12
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Re: Redline Serial Numbers

kscw10 wrote:

Yes bought new from a place now called Bicycle Connection in Cockeysville, MD...was called Cockeysville Cycle Center back in the day.  Purchased in ca. August 1981...I'm trying to find the original paperwork which I have seen before because my parents save everything.

cool

Well, that makes it a 1981...

Is it a MX-II or MX-III?


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#16 2019-12-01 5:42pm

kscw10
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Re: Redline Serial Numbers

Ok that makes sense I guess...are there any other markings/#s that i should look for on the dropouts or other spots?

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#17 2019-12-01 5:48pm

kscw10
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Re: Redline Serial Numbers

Oh sorry...and yes it is an MX-III.

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#18 2019-12-01 5:52pm

Hobbes12
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Re: Redline Serial Numbers

kscw10 wrote:

Ok that makes sense I guess...are there any other markings/#s that i should look for on the dropouts or other spots?

Nope!

That bb told the story, besides the decals...


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#19 2019-12-01 5:56pm

kscw10
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Re: Redline Serial Numbers

Cool thanks...yeah unfortunately I remember taking off the mx-iii on the frame and the original fork and seat post stickers.

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#20 2019-12-01 7:01pm

Hobbes12
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Re: Redline Serial Numbers

kscw10 wrote:

Cool thanks...yeah unfortunately I remember taking off the mx-iii on the frame and the original fork and seat post stickers.

yikes sad

Go get some new ones...updated your SN wink


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#21 2020-03-10 11:09am

ABA180
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Re: Redline Serial Numbers

Curious what RH00179 leads me to. By the list (and stickers on the bike) it's a 600A, but can I narrow the year down more than 1982-1985 as the bikes posted here range?

Looks to have a lot of different components on it.  Also curious if someone has an OE parts list.


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#22 2020-03-10 12:09pm

Hobbes12
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Re: Redline Serial Numbers

ABA180 wrote:

Curious what RH00179 leads me to. By the list (and stickers on the bike) it's a 600A, but can I narrow the year down more than 1982-1985 as the bikes posted here range?

Looks to have a lot of different components on it.  Also curious if someone has an OE parts list.

Looks to be a 1983:

RH 00726 - 1983 Redline 600a (Redline Oval stamp, NO CS bridge)
RH 07118 - 1983 Redline 600a
RH 00250 - Unknown Year, Redline 102b


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#23 2020-03-10 2:40pm

ABA180
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Re: Redline Serial Numbers

Hobbes12 wrote:

ABA180 wrote:

Curious what RH00179 leads me to. By the list (and stickers on the bike) it's a 600A, but can I narrow the year down more than 1982-1985 as the bikes posted here range?

Looks to have a lot of different components on it.  Also curious if someone has an OE parts list.

Looks to be a 1983:

RH 00726 - 1983 Redline 600a (Redline Oval stamp, NO CS bridge)
RH 07118 - 1983 Redline 600a
RH 00250 - Unknown Year, Redline 102b

So I got either a 1983 600A, unless there's more details I can find to help the search.  Does have the oval stamp under the serial as well. 

Was RH always 1983 or something else? 

CS bridge..what am I looking for there?

Last edited by ABA180 (2020-03-10 2:46pm)


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#24 2020-03-10 3:22pm

ABA180
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Re: Redline Serial Numbers

Just measured it up, the BB height is 10.5 but the tires are flat.  TT is 18.5 so looks like the MXIII frame.  It does say Series Three on the down tube sticker.


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#25 2020-03-10 4:09pm

eric12
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Re: Redline Serial Numbers

I'll join in on this. This is what's left of my 83 600a that I got summer of 83.

https://s3.amazonaws.com/uploads.bmxmuseum.com/user-images/104800/20200310_1805565e681e10a8.jpg

Last edited by eric12 (2020-03-10 4:13pm)


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