[BIP-529] Enable sFRAX-sfrxETH gauge [Optimism]

PR with Payload


We request adding sFRAX/sfrxETH weighted pool on optimism to BAL gauge as an uncapped core pool

References/Useful links:

Link to
Github Page

Protocol Description:

sFRAX is a staked interest bearing version of FRAX stable coin and sfrxETH is a staked interest bearing version of FRAX’s staked ETH (frxETH).


As a joint effort with FRAX and Beethoven X, we aim to increase liquidity of FRAX, sFRAX, frxETH, sfrxETH, to make Balancer a liquidity hub for frax assets on optimism. The BAL gauge and core pool status will facilitate the process.


  1. Governance: FRAX governance process can be seen here and their snapshot here.
  2. Oracles: Rate provider contract for sfrxETH and for sFRAX.
  3. Audits: See here
  4. Centralization vectors: see here.
  5. Market History: See here
  6. Value: Balancer will earn the protocol fee on interest bearing sFRAX and sfrxETH in the pool and so will LPs. The BIP-19 flywheel will incentivize TVL to grow here with trading volume and our staked ethereum pillars will continue to have Balancer as their ideal liquidity destination.

Link to pool: Beethoven X | Yield Concerto by FRAX
Link to child gauge: Contract Address 0x758D3297d9D9325EFb6DD424a7B2EdCaB47e309E | OP Mainnet
Link to root gauge: OptimismRootGauge | Address 0x8c596E8D1b3Be04a6cAa1B1152b51c495f799a16 | Etherscan


The Balancer Maxi LM Multisig eth:0xc38c5f97B34E175FFd35407fc91a937300E33860 will interact with the GaugeAdderv4 at 0x5DbAd78818D4c8958EfF2d5b95b28385A22113Cd and call the addGauge function with the following arguments:
gaugeType(string): Optimism

Additionally, this pool is requesting core pool status as per BIP-457