I am trying to turn my 130bcd DA cranks to gravel friendly chainset. Looking for two chainrings in new or good used condition
Spiders: 5 bolts, 130bcd
Chainring size: 38t and 48t - 46t
Colour: silver, black, red
Ah, the lovely 7410 crank set, I kept a pair of the titanium bolt/crank cap set for posterity from my 8 speed days!
There were some 37T 130mm BCD inner rings knocking around BITD, dunno if you can still find them though, another option to get a smaller inner is to maybe buy a tripliser big ring like this for instance https://www.ebay.co.uk/itm/Willow-Tripleizer-Chainring-Triple-Crank-Adaptor-Rivendell-130-bcd-46t/183805425281?hash=item2acba83681:g:RYIAAOSwZjJU2LBL you can then fit an appropriate 74mm BCD ring that suits your needs better. When doing this, say a 46/48 with a big drop then something like a Fd-6207 front mech works really well, didn't have problems with mine with early 10 speed STIs.
Imho one of the nicest crankset ever made! I was considering swapping them for double Middleburn chainset but decided to keep DA as it nicely accompanies the rest of the group on the bike
I didn't know that 37t 130bcd chainrings exist... Thanks for the link @Mr_Bump. Willow Tripleizer chainring could be a solutions but installed it leaves the outer spider "empty" – visual aspect that I personally don't like
Totally understand, I actually used a Stronglight 99Bis with my DA 7400 8 speed group as it allowed me to use much smaller inner and thus the 12-26 DA cassette was great even on some of the steeper bits.
For me it was an acceptable compromise though as you say the 7410s are one of the nicest crank sets, arguably the nicest in the Shimano range ever.
Completely make sense. I am probably going for a set of Stronglight 48 + 38 which I just found on eBay. With 11 – 28 cassette it should give me an acceptable ratios for variety of conditions
@remrak http://www.hilarystone.com/chainrings130BCD.html Hilary Stone has a 48t DA, and some others that fit the bill. Nice Rig, who made that frame?
Don't worry about formatting, just type in the text and we'll take care of making sense of it. We will auto-convert links, and if you put asterisks around words we will make them bold.
For a full reference visit the Markdown syntax.
© LFGSS, powered by microcosm.
Report a problem
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.