RoadBikeReview.com's Forum Archives - Fixed Gear
New chainring options for 130mm, 42T(9 posts)
|New chainring options for 130mm, 42T||jtferraro|
Oct 8, 2003 6:05 AM
|I'm planning on replacing my stock 48T chainring (the one that came on my Fuji Track) w/a 42T ring. The stock one uses a 130mm bolt pattern and the stock chain is 1/2" x 1/8". I'm looking for a ring that is CNC'd 7075-T6 aluminum and that doesn't have any shifting ramps or pins. I inquired about Spot brand at my LBS but they can't get them and suggested either Salsa or Sugino. The Salsa "chainring" they suggested is listed as:
CNC-machined 7075-T6 aluminum
5 through 9-speed compatible
all popular mountain and road sizes
Their "track rings", on the other hand, are listed as:
CNC-machined from 5mm 7075 aluminum plate
Use with 1/2" x 1/8" width chains
Unfortunately, these don't fit b/c they are only available in the 140mm bolt pattern. I guess you can say I have my reservations about going with Salsa's regular "chainring" for the above reasons. Will it work just fine even though the description mentions it is 5 through 9-speed compatible and "all popular mountain and road sizes" and I'm sporting only ONE speed? Moreover, their track rings seem more appropriate since they are thicker (5mm)and specifically mention that they are for use w/1/2" x 1/8" width chains.
Does anybody know anything about the Sugino 42T ring? Other options to consider?
|I meant 144mm bolt pattern in above text. (nm)||jtferraro|
Oct 8, 2003 12:11 PM
|DOH - 144mm re: track rings...but I need 130mm, 42T. ;-) (nm)||jtferraro|
Oct 8, 2003 12:39 PM
Oct 8, 2003 3:16 PM
|I use a 1/8" chain on my single-speed even though the rear cog (I have a BMX cassette hub) and the front chainring are both 3/32". You can use a 1/8" chain with 3/32" cogs and rings since they are smaller but you cannot the other way around (1/8" cogs and rings with a 3/32" chain). Anyway...
I have been using some inexpensive 130BCD rings from Nashbar without any problems. The do not have ramps or pins of newer rings but the teeth are not going to be as tall as your current track specific ring.
I also know that most people at mtbr.com single-speed discusion board swear by the Salsa rings. One version of them do not have ramps or pins but you should post on mtbr.com just to make sure.
|salsa info.... (mbtr ss regular here)||gspot|
Oct 8, 2003 4:59 PM
|you can get them a aebike.com, through your lbs that has a qbp catolog account, or through any other online retailer that lists the qbp catolog...
salsa = good
standard ring = no ramps / pins
ss-nyc.... can you confirm that the nashbar rings are ramp/ pin free?
Oct 8, 2003 6:43 PM
|Yes, the Nashbar rings are ramp/pin free. I have 2 of them already. To be honest, I think I ordered the cheaoer ones but back then they were $14.95...now $9.95.
Please rememebr that they are not nearly as nice as the Salsa's but they do the job. The Salsa's will be machined better, look better, and may even last longer if they are made from a better quality of metal. For my use...it was not worth the extra money for a Salsa since it was not used on my "primary" bike.
|Another 130bcd, 42t question||Dave Hickey|
Oct 9, 2003 11:32 AM
|Does anyone make a black 42T ring in 130bcd?|
|That is what I'm looking for, an accoding to my LBS...||jtferraro|
Oct 9, 2003 6:39 PM
|Sugino makes one. I've decided to go w/the silver Salsa one, though (but my crank and spider are black).
|Thanks, I'll check it out. nm||Dave Hickey|
Oct 10, 2003 4:11 AM